diff --git a/CHANGELOG.md b/CHANGELOG.md
index f183569be3..742fa0e582 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 
 ### Added
+
 - Control generated type access modifier for C# via `--type-access-modifier` flag. [#4788](https://github.com/microsoft/kiota/issues/4788)
 
 ### Changed
@@ -26,6 +27,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fixed a bug where python constructor parameters are being cast to strings leading to bugs as the types is unknown on graph call. [microsoftgraph/msgraph-sdk-python#165](https://github.com/microsoftgraph/msgraph-sdk-python/issues/165)
 - Fixed a bug where child path segment from single parameter path segment would be incorrectly escaped. [#5433](https://github.com/microsoft/kiota/issues/5433)
 - Fixed inconsistent typing information generated for `ParsableFactory` and stream return types in python [kiota-abstractions-python#533](https://github.com/microsoft/kiota-abstractions-python/issues/333)
+- Fixed a bug where untyped not imports in TypeScripts would not be erasable. [microsoft/kiota-typescript#1381](https://github.com/microsoft/kiota-typescript/issues/1381)
 - Updated schema link in plugin manifest to the correct url. [#5441](https://github.com/microsoft/kiota/issues/5441)
 
 ## [1.18.0] - 2024-09-05
diff --git a/src/Kiota.Builder/Refiners/TypeScriptRefiner.cs b/src/Kiota.Builder/Refiners/TypeScriptRefiner.cs
index e4e49305a1..825c94a1c3 100644
--- a/src/Kiota.Builder/Refiners/TypeScriptRefiner.cs
+++ b/src/Kiota.Builder/Refiners/TypeScriptRefiner.cs
@@ -728,7 +728,10 @@ private static bool HasMultipartBody(CodeMethod m) =>
             AbstractionsPackageName, MultipartBodyClassName, $"serialize{MultipartBodyClassName}"),
         new (static x => (x is CodeProperty prop && prop.IsOfKind(CodePropertyKind.Custom) && prop.Type.Name.Equals(KiotaBuilder.UntypedNodeName, StringComparison.OrdinalIgnoreCase))
                          || (x is CodeMethod method && (method.Parameters.Any(param => param.Kind is CodeParameterKind.RequestBody && param.Type.Name.Equals(KiotaBuilder.UntypedNodeName, StringComparison.OrdinalIgnoreCase)) || method.ReturnType.Name.Equals(KiotaBuilder.UntypedNodeName, StringComparison.OrdinalIgnoreCase))),
-            AbstractionsPackageName, KiotaBuilder.UntypedNodeName, "createUntypedNodeFromDiscriminatorValue"),
+            AbstractionsPackageName, "createUntypedNodeFromDiscriminatorValue"),
+        new (static x => (x is CodeProperty prop && prop.IsOfKind(CodePropertyKind.Custom) && prop.Type.Name.Equals(KiotaBuilder.UntypedNodeName, StringComparison.OrdinalIgnoreCase))
+                         || (x is CodeMethod method && (method.Parameters.Any(param => param.Kind is CodeParameterKind.RequestBody && param.Type.Name.Equals(KiotaBuilder.UntypedNodeName, StringComparison.OrdinalIgnoreCase)) || method.ReturnType.Name.Equals(KiotaBuilder.UntypedNodeName, StringComparison.OrdinalIgnoreCase))),
+            AbstractionsPackageName, true, KiotaBuilder.UntypedNodeName),
     };
     private const string MultipartBodyClassName = "MultipartBody";
     private static void CorrectImplements(ProprietableBlockDeclaration block)