diff --git a/src/frontend/inpcom.c b/src/frontend/inpcom.c
index 3b5b93b59..2b2f60e83 100644
--- a/src/frontend/inpcom.c
+++ b/src/frontend/inpcom.c
@@ -2799,6 +2799,7 @@ inp_fix_inst_calls_for_numparam(struct names *subckt_w_params, struct line *deck
                 struct line *d;
 
                 d = find_subckt(c->level, subckt_name)->line;
+                #warning "if not d ..."
                 {
                     char *subckt_line = d->li_line;
                     subckt_line = skip_non_ws(subckt_line);