diff --git a/src/libraries/System.Runtime.InteropServices.JavaScript/src/System/Runtime/InteropServices/JavaScript/JSHostImplementation.cs b/src/libraries/System.Runtime.InteropServices.JavaScript/src/System/Runtime/InteropServices/JavaScript/JSHostImplementation.cs
index b62f347a00d05..f4653c5e35041 100644
--- a/src/libraries/System.Runtime.InteropServices.JavaScript/src/System/Runtime/InteropServices/JavaScript/JSHostImplementation.cs
+++ b/src/libraries/System.Runtime.InteropServices.JavaScript/src/System/Runtime/InteropServices/JavaScript/JSHostImplementation.cs
@@ -229,6 +229,9 @@ public static void LoadSatelliteAssembly(byte[] dllBytes)
                 if (method.ReturnType == typeof(void))
                 {
                     method.Invoke(null, argsToPass);
+#if FEATURE_WASM_MANAGED_THREADS
+                    result = Task.FromResult(0);
+#endif
                 }
                 else if (method.ReturnType == typeof(int))
                 {