diff --git a/Objects/mappingobject.c b/Objects/mappingobject.c
index cd915e9..39c2fc9 100644
--- a/Objects/mappingobject.c
+++ b/Objects/mappingobject.c
@@ -97,6 +97,9 @@
 	long me_hash;
 	object *me_key;
 	object *me_value;
+#ifdef USE_CACHE_ALIGNED
+	long	aligner;
+#endif
 } mappingentry;
 
 /*