diff --git a/ZSharp/Main.cpp b/ZSharp/Main.cpp
index eab0dd3..64e1a04 100644
--- a/ZSharp/Main.cpp
+++ b/ZSharp/Main.cpp
@@ -803,7 +803,7 @@ int main(int argc, char* argv[])
 		// Change the current working directory to that of the script
 		int chErr = chdir(projectDirectory.c_str());
 		if (chErr < 0)
-			LogCriticalError("Failed to change directory to: \"" + projectDirectory + "\", error num: " + chErr);
+			LogCriticalError("Failed to change directory to: \"" + projectDirectory + "\", error num: " + to_string(chErr));
 #if DEVELOPER_MESSAGES
 		InterpreterLog("Changed directory to " + projectDirectory + "...");
 #endif