diff --git a/Sources/XcodeProj/Objects/SwiftPackage/XCSwiftPackageProductDependency.swift b/Sources/XcodeProj/Objects/SwiftPackage/XCSwiftPackageProductDependency.swift
index f7ae0d4c6..238e31f9a 100644
--- a/Sources/XcodeProj/Objects/SwiftPackage/XCSwiftPackageProductDependency.swift
+++ b/Sources/XcodeProj/Objects/SwiftPackage/XCSwiftPackageProductDependency.swift
@@ -18,12 +18,17 @@ public class XCSwiftPackageProductDependency: PBXContainerItem, PlistSerializabl
         }
     }
 
+    /// Is it a Plugin.
+    var isPlugin: Bool
+
     // MARK: - Init
 
     public init(productName: String,
-                package: XCRemoteSwiftPackageReference? = nil) {
+                package: XCRemoteSwiftPackageReference? = nil,
+                isPlugin: Bool = false) {
         self.productName = productName
         packageReference = package?.reference
+        self.isPlugin = isPlugin
         super.init()
     }
 
@@ -31,7 +36,16 @@ public class XCSwiftPackageProductDependency: PBXContainerItem, PlistSerializabl
         let objects = decoder.context.objects
         let repository = decoder.context.objectReferenceRepository
         let container = try decoder.container(keyedBy: CodingKeys.self)
-        productName = try container.decode(String.self, forKey: .productName)
+        let rawProductName = try container.decode(String.self, forKey: .productName)
+        let pluginPrefix = "plugin:"
+        if rawProductName.hasPrefix(pluginPrefix) {
+            productName = String(rawProductName.dropFirst(pluginPrefix.count))
+            isPlugin = true
+        } else {
+            productName = rawProductName
+            isPlugin = false
+        }
+
         if let packageString: String = try container.decodeIfPresent(.package) {
             packageReference = repository.getOrCreate(reference: packageString, objects: objects)
         } else {
@@ -46,7 +60,11 @@ public class XCSwiftPackageProductDependency: PBXContainerItem, PlistSerializabl
         if let package = package {
             dictionary["package"] = .string(.init(package.reference.value, comment: "XCRemoteSwiftPackageReference \"\(package.name ?? "")\""))
         }
-        dictionary["productName"] = .string(.init(productName))
+        if isPlugin {
+            dictionary["productName"] = .string(.init("plugin:" + productName))
+        } else {
+            dictionary["productName"] = .string(.init(productName))
+        }
 
         return (key: CommentedString(reference, comment: productName),
                 value: .dictionary(dictionary))
diff --git a/Sources/XcodeProj/Utils/ReferenceGenerator.swift b/Sources/XcodeProj/Utils/ReferenceGenerator.swift
index 2336d82b6..f3e8946ef 100644
--- a/Sources/XcodeProj/Utils/ReferenceGenerator.swift
+++ b/Sources/XcodeProj/Utils/ReferenceGenerator.swift
@@ -99,6 +99,15 @@ final class ReferenceGenerator: ReferenceGenerating {
                 fixReference(for: $0, identifiers: identifiers)
             }
 
+            // Build Tool Plug-ins
+            target.dependencies.forEach {
+                guard let product = $0.product, product.isPlugin else { return }
+
+                var identifiers = identifiers
+                identifiers.append(product.productName)
+                fixReference(for: product, identifiers: identifiers)
+            }
+
             fixReference(for: target, identifiers: identifiers)
         }
     }
diff --git a/Tests/XcodeProjTests/Objects/SwiftPackage/XCSwiftPackageProductDependencyTests.swift b/Tests/XcodeProjTests/Objects/SwiftPackage/XCSwiftPackageProductDependencyTests.swift
index 475712a2b..a473311a1 100644
--- a/Tests/XcodeProjTests/Objects/SwiftPackage/XCSwiftPackageProductDependencyTests.swift
+++ b/Tests/XcodeProjTests/Objects/SwiftPackage/XCSwiftPackageProductDependencyTests.swift
@@ -19,6 +19,25 @@ final class XCSwiftPackageProductDependencyTests: XCTestCase {
         // Then
         XCTAssertEqual(got.productName, "xcodeproj")
         XCTAssertEqual(got.packageReference?.value, "packageReference")
+        XCTAssertEqual(got.isPlugin, false)
+    }
+
+    func test_initAsPlugin() throws {
+        // Given
+        let decoder = XcodeprojPropertyListDecoder()
+        let encoder = PropertyListEncoder()
+        let plist = ["reference": "reference",
+                     "productName": "plugin:xcodeproj",
+                     "package": "packageReference"]
+        let data = try encoder.encode(plist)
+
+        // When
+        let got = try decoder.decode(XCSwiftPackageProductDependency.self, from: data)
+
+        // Then
+        XCTAssertEqual(got.productName, "xcodeproj")
+        XCTAssertEqual(got.packageReference?.value, "packageReference")
+        XCTAssertEqual(got.isPlugin, true)
     }
 
     func test_plistValues() throws {
@@ -39,6 +58,25 @@ final class XCSwiftPackageProductDependencyTests: XCTestCase {
         ]))
     }
 
+    func test_plistValuesAsPlugin() throws {
+        // Given
+        let proj = PBXProj()
+        let package = XCRemoteSwiftPackageReference(repositoryURL: "repository")
+        let subject = XCSwiftPackageProductDependency(productName: "product",
+                                                      package: package,
+                                                      isPlugin: true)
+
+        // When
+        let got = try subject.plistKeyAndValue(proj: proj, reference: "reference")
+
+        // Then
+        XCTAssertEqual(got.value, .dictionary([
+            "isa": "XCSwiftPackageProductDependency",
+            "productName": "plugin:product",
+            "package": .string(.init(package.reference.value, comment: "XCRemoteSwiftPackageReference \"\(package.name ?? "")\"")),
+        ]))
+    }
+
     func test_equal() {
         // Given
         let package = XCRemoteSwiftPackageReference(repositoryURL: "repository")
@@ -50,4 +88,20 @@ final class XCSwiftPackageProductDependencyTests: XCTestCase {
         // Then
         XCTAssertEqual(first, second)
     }
+
+    func test_isPlugin() {
+        // Given
+        let plugin = XCSwiftPackageProductDependency(productName: "product", isPlugin: true)
+
+        // Then
+        XCTAssertTrue(plugin.isPlugin)
+    }
+
+    func test_isNotPlugin() {
+        // Given
+        let plugin = XCSwiftPackageProductDependency(productName: "product")
+
+        // Then
+        XCTAssertFalse(plugin.isPlugin)
+    }
 }
diff --git a/Tests/XcodeProjTests/Utils/ReferenceGeneratorTests.swift b/Tests/XcodeProjTests/Utils/ReferenceGeneratorTests.swift
index 988d2f106..08a3f9760 100644
--- a/Tests/XcodeProjTests/Utils/ReferenceGeneratorTests.swift
+++ b/Tests/XcodeProjTests/Utils/ReferenceGeneratorTests.swift
@@ -11,9 +11,13 @@ class ReferenceGeneratorTests: XCTestCase {
         let containerItemProxy = project.makeContainerItemProxy(fileReference: remoteProjectFileReference)
         let productReferenceProxy = project.makeReferenceProxy(containerItemProxy: containerItemProxy)
         let productsGroup = project.makeProductsGroup(children: [productReferenceProxy])
+        let pluginDependency = project.makePluginDependency()
+        let (target, _) = project.makeTarget(productReferenceProxy: productReferenceProxy)
+        target.dependencies.append(pluginDependency)
 
         pbxProject.projectReferences.append(["ProductGroup": productsGroup.reference,
                                              "ProjectRef": remoteProjectFileReference.reference])
+        pbxProject.targets.append(target)
 
         let referenceGenerator = ReferenceGenerator(outputSettings: PBXOutputSettings())
         try referenceGenerator.generateReferences(proj: project)
@@ -22,6 +26,7 @@ class ReferenceGeneratorTests: XCTestCase {
         XCTAssert(!containerItemProxy.reference.temporary)
         XCTAssert(!productReferenceProxy.reference.temporary)
         XCTAssert(!remoteProjectFileReference.reference.temporary)
+        XCTAssert(!pluginDependency.productReference!.temporary)
     }
 
     func test_projectReferencingRemoteXcodeprojBundle_generatesDeterministicIdentifiers() throws {
@@ -32,7 +37,9 @@ class ReferenceGeneratorTests: XCTestCase {
             let containerItemProxy = project.makeContainerItemProxy(fileReference: remoteProjectFileReference)
             let productReferenceProxy = project.makeReferenceProxy(containerItemProxy: containerItemProxy)
             let productsGroup = project.makeProductsGroup(children: [productReferenceProxy])
+            let pluginDependency = project.makePluginDependency()
             let (target, buildFile) = project.makeTarget(productReferenceProxy: productReferenceProxy)
+            target.dependencies.append(pluginDependency)
 
             pbxProject.projectReferences.append(["ProductGroup": productsGroup.reference,
                                                  "ProjectRef": remoteProjectFileReference.reference])
@@ -41,7 +48,7 @@ class ReferenceGeneratorTests: XCTestCase {
             let referenceGenerator = ReferenceGenerator(outputSettings: PBXOutputSettings())
             try referenceGenerator.generateReferences(proj: project)
 
-            return [remoteProjectFileReference, containerItemProxy, productReferenceProxy, productsGroup, buildFile]
+            return [remoteProjectFileReference, containerItemProxy, productReferenceProxy, productsGroup, buildFile, pluginDependency.productReference!.getObject()!]
                 .map { $0.reference.value }
         }
 
@@ -132,6 +139,15 @@ private extension PBXProj {
         return productsGroup
     }
 
+    func makePluginDependency() -> PBXTargetDependency {
+        let packageReference = XCRemoteSwiftPackageReference(repositoryURL: "repository")
+        let packageDependency = XCSwiftPackageProductDependency(productName: "product", package: packageReference, isPlugin: true)
+        let targetDependency = PBXTargetDependency(product: packageDependency)
+        add(object: targetDependency.productReference!.getObject()!)
+
+        return targetDependency
+    }
+
     func makeTarget(productReferenceProxy: PBXReferenceProxy) -> (target: PBXTarget, buildFile: PBXBuildFile) {
         let buildFile = PBXBuildFile(file: productReferenceProxy)
         add(object: buildFile)