diff --git a/src/testlib/qsignalspy.h b/src/testlib/qsignalspy.h
index a60ae05e18e..ef1c71b5c67 100644
--- a/src/testlib/qsignalspy.h
+++ b/src/testlib/qsignalspy.h
@@ -200,7 +200,7 @@ private:
             else
                 list << QVariant(QMetaType(type), a[i + 1]);
         }
-        append(list);
+        append(std::move(list));
 
         if (m_waiting) {
             locker.unlock();