1 files changed, 5 insertions, 3 deletions
diff --git a/src/message.cpp b/src/message.cpp
index 6c7c8ac..eb20c19 100644
--- a/src/message.cpp
+++ b/src/message.cpp
@@ -122,9 +122,11 @@ static void handle_warn_as_error()
 {
   if (warnBehavior == WARN_YES)
   {
-    std::unique_lock<std::mutex> lock(g_mutex);
-    QCString msgText = " (warning treated as error, aborting now)\n";
-    fwrite(msgText.data(),1,msgText.length(),warnFile);
+    {
+      std::unique_lock<std::mutex> lock(g_mutex);
+      QCString msgText = " (warning treated as error, aborting now)\n";
+      fwrite(msgText.data(),1,msgText.length(),warnFile);
+    }
     exit(1);
   }
   warnStat = true;