diff --git a/std/thing/commands.c b/std/thing/commands.c
index 8683f72..b3ea3d0 100644
--- a/std/thing/commands.c
+++ b/std/thing/commands.c
@@ -671,7 +671,7 @@
       raise_error("SetProp(P_COMMANDS): corrupt commands-mapping.\n");
     mapping tmp = deep_copy(commands);
     walk_mapping(tmp, #'_check_importentry);
-    added_commands = tmp;
+    added_cmds = tmp;
   }
   return _query_commands();
 }