1 files changed, 1 insertions, 1 deletions
diff --git a/parser.l b/parser.l
index 4925b113..6ad32847 100644
--- a/parser.l
+++ b/parser.l
@@ -692,7 +692,7 @@ void parse_init(void)
   protect(&yyin_stream, &prepared_error_message,
           &form_to_ln_hash, (val *) 0);
 
-  form_to_ln_hash = make_hash(t, nil, nil);
+  form_to_ln_hash = make_hash(t, nil, t);
 }
 
 void parse_reset(val spec_file)