diff --git a/platform/darwin/src/MGLRasterDEMSource.mm b/platform/darwin/src/MGLRasterDEMSource.mm
index 27614b9ef40..753499ff94c 100644
--- a/platform/darwin/src/MGLRasterDEMSource.mm
+++ b/platform/darwin/src/MGLRasterDEMSource.mm
@@ -7,11 +7,10 @@
 
 @implementation MGLRasterDEMSource
 
-- (std::unique_ptr<mbgl::style::RasterSource>)pendingSourceWithIdentifier:(NSString *)identifier configurationURL:(NSURL *)configurationURL tileSize:(CGFloat)tileSize {
-    NSString *configurationURLString = configurationURL.mgl_URLByStandardizingScheme.absoluteString;
-    return std::make_unique<mbgl::style::RasterDEMSource>(identifier.UTF8String,
-                                                          configurationURLString.UTF8String,
-                                                          uint16_t(round(tileSize)));
+- (std::unique_ptr<mbgl::style::RasterSource>)pendingSourceWithIdentifier:(NSString *)identifier urlOrTileset:(mbgl::variant<std::string, mbgl::Tileset>)urlOrTileset tileSize:(uint16_t)tileSize {
+    auto source = std::make_unique<mbgl::style::RasterDEMSource>(identifier.UTF8String,
+                                                                 urlOrTileset,
+                                                                 tileSize);
+    return source;
 }
-
 @end
diff --git a/platform/darwin/src/MGLRasterTileSource.mm b/platform/darwin/src/MGLRasterTileSource.mm
index e89367711eb..540e27ad7df 100644
--- a/platform/darwin/src/MGLRasterTileSource.mm
+++ b/platform/darwin/src/MGLRasterTileSource.mm
@@ -33,15 +33,16 @@ - (instancetype)initWithIdentifier:(NSString *)identifier configurationURL:(NSUR
 }
 
 - (instancetype)initWithIdentifier:(NSString *)identifier configurationURL:(NSURL *)configurationURL tileSize:(CGFloat)tileSize {
-    auto source = [self pendingSourceWithIdentifier:identifier configurationURL:configurationURL tileSize:tileSize];
+    NSString *configurationURLString = configurationURL.mgl_URLByStandardizingScheme.absoluteString;
+    auto source = [self pendingSourceWithIdentifier:identifier urlOrTileset:configurationURLString.UTF8String tileSize:tileSize];
     return self = [super initWithPendingSource:std::move(source)];
 }
 
-- (std::unique_ptr<mbgl::style::RasterSource>)pendingSourceWithIdentifier:(NSString *)identifier configurationURL:(NSURL *)configurationURL tileSize:(CGFloat)tileSize {
-    NSString *configurationURLString = configurationURL.mgl_URLByStandardizingScheme.absoluteString;
-    return std::make_unique<mbgl::style::RasterSource>(identifier.UTF8String,
-                                                       configurationURLString.UTF8String,
-                                                       uint16_t(round(tileSize)));
+- (std::unique_ptr<mbgl::style::RasterSource>)pendingSourceWithIdentifier:(NSString *)identifier urlOrTileset:(mbgl::variant<std::string, mbgl::Tileset>)urlOrTileset tileSize:(uint16_t)tileSize {
+    auto source = std::make_unique<mbgl::style::RasterSource>(identifier.UTF8String,
+                                                              urlOrTileset,
+                                                              tileSize);
+    return source;
 }
 
 - (instancetype)initWithIdentifier:(NSString *)identifier tileURLTemplates:(NSArray<NSString *> *)tileURLTemplates options:(nullable NSDictionary<MGLTileSourceOption, id> *)options {
@@ -56,7 +57,7 @@ - (instancetype)initWithIdentifier:(NSString *)identifier tileURLTemplates:(NSAr
         tileSize = static_cast<uint16_t>(round(tileSizeNumber.doubleValue));
     }
 
-    auto source = std::make_unique<mbgl::style::RasterSource>(identifier.UTF8String, tileSet, tileSize);
+    auto source = [self pendingSourceWithIdentifier:identifier urlOrTileset:tileSet tileSize:tileSize];
     return self = [super initWithPendingSource:std::move(source)];
 }
 
diff --git a/platform/darwin/src/MGLRasterTileSource_Private.h b/platform/darwin/src/MGLRasterTileSource_Private.h
index 8502b811e20..55f342c7ffa 100644
--- a/platform/darwin/src/MGLRasterTileSource_Private.h
+++ b/platform/darwin/src/MGLRasterTileSource_Private.h
@@ -1,8 +1,10 @@
 #import "MGLRasterTileSource.h"
 
 #include <memory>
+#include <mbgl/util/variant.hpp>
 
 namespace mbgl {
+    class Tileset;
     namespace style {
         class RasterSource;
     }
@@ -14,7 +16,7 @@ NS_ASSUME_NONNULL_BEGIN
 
 @property (nonatomic, readonly, nullable) mbgl::style::RasterSource *rawSource;
 
-- (std::unique_ptr<mbgl::style::RasterSource>)pendingSourceWithIdentifier:(NSString *)identifier configurationURL:(NSURL *)configurationURL tileSize:(CGFloat)tileSize;
+- (std::unique_ptr<mbgl::style::RasterSource>)pendingSourceWithIdentifier:(NSString *)identifier urlOrTileset:(mbgl::variant<std::string, mbgl::Tileset>)urlOrTileset tileSize:(uint16_t)tileSize;
 
 @end