diff --git a/Jint/Native/Function/FunctionInstance.Dynamic.cs b/Jint/Native/Function/FunctionInstance.Dynamic.cs
index f0134874a3..fc4f57b8b4 100644
--- a/Jint/Native/Function/FunctionInstance.Dynamic.cs
+++ b/Jint/Native/Function/FunctionInstance.Dynamic.cs
@@ -81,13 +81,13 @@ internal Function CreateDynamicFunction(
                 switch (kind)
                 {
                     case FunctionKind.Normal:
-                        functionExpression = "function f(){}";
+                        functionExpression = "function " + _functionNameAnonymous + "(){}";
                         break;
                     case FunctionKind.Generator:
-                        functionExpression = "function* f(){}";
+                        functionExpression = "function* " + _functionNameAnonymous + "(){}";
                         break;
                     case FunctionKind.Async:
-                        functionExpression = "async function f(){}";
+                        functionExpression = "async function " + _functionNameAnonymous + "(){}";
                         break;
                     case FunctionKind.AsyncGenerator:
                         ExceptionHelper.ThrowNotImplementedException("Async generators not implemented");
@@ -102,13 +102,13 @@ internal Function CreateDynamicFunction(
                 switch (kind)
                 {
                     case FunctionKind.Normal:
-                        functionExpression = "function f(";
+                        functionExpression = "function " + _functionNameAnonymous + "(";
                         break;
                     case FunctionKind.Async:
-                        functionExpression = "async function f(";
+                        functionExpression = "async function " + _functionNameAnonymous + "(";
                         break;
                     case FunctionKind.Generator:
-                        functionExpression = "function* f(";
+                        functionExpression = "function* " + _functionNameAnonymous +"(";
                         break;
                     case FunctionKind.AsyncGenerator:
                         ExceptionHelper.ThrowNotImplementedException("Async generators not implemented");