diff --git a/src/corelib/tools/qhash.h b/src/corelib/tools/qhash.h
index 4b4cb2d5f0..f4590c6672 100644
--- a/src/corelib/tools/qhash.h
+++ b/src/corelib/tools/qhash.h
@@ -136,7 +136,7 @@ struct QHashDummyValue
 {
 };
 
-inline bool operator==(const QHashDummyValue & /* v1 */, const QHashDummyValue & /* v2 */)
+constexpr bool operator==(const QHashDummyValue &, const QHashDummyValue &) noexcept
 {
     return true;
 }