diff --git a/src/corelib/time/qdatetime.h b/src/corelib/time/qdatetime.h
index f8a9360fbb..e1c0d29e2a 100644
--- a/src/corelib/time/qdatetime.h
+++ b/src/corelib/time/qdatetime.h
@@ -302,7 +302,7 @@ class Q_CORE_EXPORT QDateTime
         quintptr status : 8;
 #  endif
 #endif
-        friend constexpr bool operator==(const ShortData &lhs, const ShortData &rhs)
+        friend constexpr bool operator==(ShortData lhs, ShortData rhs)
         { return lhs.status == rhs.status && lhs.msecs == rhs.msecs; }
     };
 
diff --git a/src/corelib/time/qtimezone.h b/src/corelib/time/qtimezone.h
index fc53a74453..46c7d6312b 100644
--- a/src/corelib/time/qtimezone.h
+++ b/src/corelib/time/qtimezone.h
@@ -49,7 +49,7 @@ class Q_CORE_EXPORT QTimeZone
 #endif
         {
         }
-        friend constexpr bool operator==(const ShortData &lhs, const ShortData &rhs)
+        friend constexpr bool operator==(ShortData lhs, ShortData rhs)
         { return lhs.mode == rhs.mode && lhs.offset == rhs.offset; }
         constexpr Qt::TimeSpec spec() const { return Qt::TimeSpec((mode + 3) & 3); }
     };