diff --git a/src/corelib/tools/qhash.h b/src/corelib/tools/qhash.h
index 6c34685070..c09d7aaccb 100644
--- a/src/corelib/tools/qhash.h
+++ b/src/corelib/tools/qhash.h
@@ -69,15 +69,13 @@ Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(ushort key, uint seed =
 Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(short key, uint seed = 0) Q_DECL_NOTHROW { return uint(key) ^ seed; }
 Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(uint key, uint seed = 0) Q_DECL_NOTHROW { return key ^ seed; }
 Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(int key, uint seed = 0) Q_DECL_NOTHROW { return uint(key) ^ seed; }
-Q_DECL_CONST_FUNCTION inline uint qHash(ulong key, uint seed = 0) Q_DECL_NOTHROW
+Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(ulong key, uint seed = 0) Q_DECL_NOTHROW
 {
-    if (sizeof(ulong) > sizeof(uint)) {
-        return uint(((key >> (8 * sizeof(uint) - 1)) ^ key) & (~0U)) ^ seed;
-    } else {
-        return uint(key & (~0U)) ^ seed;
-    }
+    return (sizeof(ulong) > sizeof(uint))
+        ? (uint(((key >> (8 * sizeof(uint) - 1)) ^ key) & (~0U)) ^ seed)
+        : (uint(key & (~0U)) ^ seed);
 }
-Q_DECL_CONST_FUNCTION inline uint qHash(long key, uint seed = 0) Q_DECL_NOTHROW { return qHash(ulong(key), seed); }
+Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(long key, uint seed = 0) Q_DECL_NOTHROW { return qHash(ulong(key), seed); }
 Q_DECL_CONST_FUNCTION Q_DECL_CONSTEXPR inline uint qHash(quint64 key, uint seed = 0) Q_DECL_NOTHROW
 {
     return uint(((key >> (8 * sizeof(uint) - 1)) ^ key) & (~0U)) ^ seed;