diff --git a/src/corelib/global/qglobal.h b/src/corelib/global/qglobal.h
index e93bfbcc4a..cb0f66842c 100644
--- a/src/corelib/global/qglobal.h
+++ b/src/corelib/global/qglobal.h
@@ -37,10 +37,10 @@
 
 #ifdef __cplusplus
 #  include <cstddef>
-#else
-#  include <stddef.h>
 #endif
 
+#include <stddef.h>
+
 #define QT_VERSION_STR   "5.5.0"
 /*
    QT_VERSION is (major << 16) + (minor << 8) + patch.