diff --git a/src/corelib/global/qglobal.h b/src/corelib/global/qglobal.h
index f0d902f1f5..33b5b8bd76 100644
--- a/src/corelib/global/qglobal.h
+++ b/src/corelib/global/qglobal.h
@@ -1031,7 +1031,7 @@ template <> class QStaticAssertFailure<true> {};
 #define Q_STATIC_ASSERT_PRIVATE_JOIN(A, B) Q_STATIC_ASSERT_PRIVATE_JOIN_IMPL(A, B)
 #define Q_STATIC_ASSERT_PRIVATE_JOIN_IMPL(A, B) A ## B
 #define Q_STATIC_ASSERT(Condition) \
-    enum {Q_STATIC_ASSERT_PRIVATE_JOIN(q_static_assert_result, __LINE__) = sizeof(QStaticAssertFailure<(Condition)>)}
+    enum {Q_STATIC_ASSERT_PRIVATE_JOIN(q_static_assert_result, __LINE__) = sizeof(QStaticAssertFailure<!!(Condition)>)}
 #define Q_STATIC_ASSERT_X(Condition, Message) Q_STATIC_ASSERT(Condition)
 #endif