diff --git a/tests/auto/corelib/tools/containerapisymmetry/tst_containerapisymmetry.cpp b/tests/auto/corelib/tools/containerapisymmetry/tst_containerapisymmetry.cpp
index 29b229637e3..c33ac53b13a 100644
--- a/tests/auto/corelib/tools/containerapisymmetry/tst_containerapisymmetry.cpp
+++ b/tests/auto/corelib/tools/containerapisymmetry/tst_containerapisymmetry.cpp
@@ -58,6 +58,8 @@ struct Movable
         ++instanceCount;
     }
 
+    Movable &operator=(const Movable &m) = default;
+
     ~Movable()
     {
         --instanceCount;