diff --git a/microscript/ILibDuktape_Helpers.c b/microscript/ILibDuktape_Helpers.c
index 7569a82..9b8f376 100644
--- a/microscript/ILibDuktape_Helpers.c
+++ b/microscript/ILibDuktape_Helpers.c
@@ -765,6 +765,12 @@ void Duktape_SafeDestroyHeap(duk_context *ctx)
 
 	duk_destroy_heap(ctx);
 
+	if (ctxd->fakechain != 0 && ctxd->chain != NULL)
+	{
+		ILibChain_DestroyEx(ctxd->chain);
+		ctxd->chain = NULL;
+	}
+
 	if (ILibLinkedList_GetCount(ctxd->threads) > 0)
 	{
 #ifdef WIN32
@@ -797,6 +803,7 @@ void Duktape_SafeDestroyHeap(duk_context *ctx)
 #endif
 	}
 	ILibLinkedList_Destroy(ctxd->threads);	
+
 	ILibMemory_Free(ctxd);
 }
 void *Duktape_GetChain(duk_context *ctx)
diff --git a/microscript/ILibDuktape_Helpers.h b/microscript/ILibDuktape_Helpers.h
index be15e48..9c0f888 100644
--- a/microscript/ILibDuktape_Helpers.h
+++ b/microscript/ILibDuktape_Helpers.h
@@ -55,6 +55,7 @@ typedef struct ILibDuktape_ContextData
 	uint32_t apc_flags;
 #endif
 	void *threads;
+	int fakechain;
 	void *chain;
 	void *user;
 }ILibDuktape_ContextData;
diff --git a/microscript/ILibDuktape_ScriptContainer.c b/microscript/ILibDuktape_ScriptContainer.c
index 09d4d15..fd3c4a1 100644
--- a/microscript/ILibDuktape_ScriptContainer.c
+++ b/microscript/ILibDuktape_ScriptContainer.c
@@ -2514,6 +2514,11 @@ int ILibDuktape_ScriptContainer_DebuggingOK(duk_context *ctx)
 duk_context *ILibDuktape_ScriptContainer_InitializeJavaScriptEngineEx3(duk_context *ctx, SCRIPT_ENGINE_SECURITY_FLAGS securityFlags, unsigned int executionTimeout, void *chain, char **argList, ILibSimpleDataStore *db, char *exePath, ILibProcessPipe_Manager pipeManager, ILibDuktape_HelperEvent exitHandler, void *exitUser)
 {
 	void **timeoutKey = executionTimeout > 0 ? (void**)ILibMemory_Allocate(sizeof(void*), 0, NULL, NULL) : NULL;
+	if (chain == NULL)
+	{
+		duk_ctx_context_data(ctx)->fakechain = 1;
+		chain = ILibCreateChain();
+	}
 	duk_ctx_context_data(ctx)->chain = chain;
 
 	duk_push_heap_stash(ctx);															// [s]