1 files changed, 1 insertions, 0 deletions
diff --git a/src/hoofd.c b/src/hoofd.c
index 62d1151..9e428e9 100644
--- a/src/hoofd.c
+++ b/src/hoofd.c
@@ -44,6 +44,7 @@ static char** parse_options(int argc, char **argv, int *n, int *c) {
         exit(0);
 
       case '?':
+        fprintf(stderr, "hoofd: Ongeldige optie: -%c\n", optopt);
         usage(stderr);
         exit(1);
     }