diff --git a/src/eval.c b/src/eval.c
index 77359dc..dbc10c1 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -246,7 +246,8 @@
 
 	if (partial->pt_func != NULL && partial->pt_func->uf_dfunc_idx >= 0)
 	{
-	    if (call_def_function(partial->pt_func, argc, argv, rettv) == FAIL)
+	    if (call_def_function(partial->pt_func, argc, argv,
+						       partial, rettv) == FAIL)
 		return FAIL;
 	}
 	else