diff --git a/src/corelib/plugin/quuid.cpp b/src/corelib/plugin/quuid.cpp
index 77b9696eb51..e0e395ab1a0 100644
--- a/src/corelib/plugin/quuid.cpp
+++ b/src/corelib/plugin/quuid.cpp
@@ -994,10 +994,9 @@ QDebug operator<<(QDebug dbg, const QUuid &id)
 */
 size_t qHash(const QUuid &uuid, size_t seed) noexcept
 {
-    return uuid.data1 ^ uuid.data2 ^ (uuid.data3 << 16)
-            ^ ((uuid.data4[0] << 24) | (uuid.data4[1] << 16) | (uuid.data4[2] << 8) | uuid.data4[3])
-            ^ ((uuid.data4[4] << 24) | (uuid.data4[5] << 16) | (uuid.data4[6] << 8) | uuid.data4[7])
-            ^ seed;
+    static_assert(std::has_unique_object_representations_v<QUuid>,
+                  "Can't use qHashBits() if the type has padding holes.");
+    return qHashBits(&uuid, sizeof(QUuid), seed);
 }