diff --git a/src/evalfunc.c b/src/evalfunc.c
index 125ba55..f2c6999 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -308,7 +308,7 @@
     if (type->tt_type == VAR_OBJECT
 	    || type_any_or_unknown(type))
 	return OK;
-    arg_type_mismatch(&t_object, type, context->arg_idx + 1);
+    arg_type_mismatch(&t_object_any, type, context->arg_idx + 1);
     return FAIL;
 }