diff --git a/IDEHelper/Backend/BeModule.h b/IDEHelper/Backend/BeModule.h
index b9359c83..e24465ac 100644
--- a/IDEHelper/Backend/BeModule.h
+++ b/IDEHelper/Backend/BeModule.h
@@ -495,7 +495,11 @@ public:
 	BE_VALUE_TYPE(BeFunction, BeConstant);
 
 	BeModule* mModule;	
+#ifdef _DEBUG
+	StringT<256> mName;
+#else
 	String mName;
+#endif
 	BfIRLinkageType mLinkageType;	
 	bool mAlwaysInline;		
 	bool mNoUnwind;
diff --git a/IDEHelper/Compiler/BfCodeGen.cpp b/IDEHelper/Compiler/BfCodeGen.cpp
index ce473282..9b374f23 100644
--- a/IDEHelper/Compiler/BfCodeGen.cpp
+++ b/IDEHelper/Compiler/BfCodeGen.cpp
@@ -304,7 +304,7 @@ void BfCodeGenThread::RunLoop()
 		auto cacheDir = GetFileDir(request->mOutFileName);
 		auto cacheFileName = GetFileName(request->mOutFileName);
 
-		String objFileName = request->mOutFileName + BF_OBJ_EXT;
+		StringT<256> objFileName = request->mOutFileName + BF_OBJ_EXT;
 
 		bool hasCacheMatch = false;
 		BfCodeGenDirectoryData* dirCache = NULL;