diff --git a/src/corelib/io/qprocess.h b/src/corelib/io/qprocess.h
index b8923b032da..ca0a9a29ad2 100644
--- a/src/corelib/io/qprocess.h
+++ b/src/corelib/io/qprocess.h
@@ -175,7 +175,7 @@ public:
     std::function<void(void)> childProcessModifier() const;
     void setChildProcessModifier(const std::function<void(void)> &modifier);
 
-    enum UnixProcessFlag : quint32 {
+    enum class UnixProcessFlag : quint32 {
         ResetSignalHandlers                 = 0x0001, // like POSIX_SPAWN_SETSIGDEF
         IgnoreSigPipe                       = 0x0002,
         // some room if we want to add IgnoreSigHup or so