1 files changed, 3 insertions, 0 deletions

diff --git a/gram.y b/gram.y
index 33f0e39..dd323be 100644
--- a/gram.y
+++ b/gram.y
@@ -213,6 +213,8 @@ main (int argc, char **argv)
 	    read_include (&cw_list, cwfile);
 	  file_list = NULL;
 	  read_include (&file_list, optarg);
+	  if (file_list)
+	    {
 	      for (s = file_list->head; s; s = s->next)
 		{
 		  openaliases_prefix (optarg, s->str);
@@ -220,6 +222,7 @@ main (int argc, char **argv)
 		  file_count++;
 		}
 	      slist_destroy (&file_list);
+	    }
 	  break;
 				
 	case 'h':