diff --git a/src/corelib/thread/qmutex_linux.cpp b/src/corelib/thread/qmutex_linux.cpp
index 25444ffff6..17072f44d4 100644
--- a/src/corelib/thread/qmutex_linux.cpp
+++ b/src/corelib/thread/qmutex_linux.cpp
@@ -57,7 +57,7 @@
 #endif
 
 #ifndef FUTEX_PRIVATE_FLAG
-#  define FUTEX_PRIVATE_FLAG    128
+#  define FUTEX_PRIVATE_FLAG    0
 #endif