diff --git a/libisofs/messages.c b/libisofs/messages.c
index 2e958a5..81953ab 100644
--- a/libisofs/messages.c
+++ b/libisofs/messages.c
@@ -139,6 +139,7 @@ int iso_node_xinfo_dispose_cloners(int flag)
         next = assoc->next;
         free((char *) assoc);
     }
+    iso_xinfo_cloner_list= NULL;
     return(1);
 }