diff --git a/src/libs/utils/fileutils.h b/src/libs/utils/fileutils.h
index 989787fc77d..c23cbb2118c 100644
--- a/src/libs/utils/fileutils.h
+++ b/src/libs/utils/fileutils.h
@@ -288,7 +288,7 @@ public:
     using FileSaverBase::finalize;
 
 private:
-    bool m_isSafe;
+    bool m_isSafe = false;
 };
 
 class QTCREATOR_UTILS_EXPORT TempFileSaver : public FileSaverBase