1 files changed, 6 insertions, 0 deletions
diff --git a/client/client.c b/client/client.c
index 7bb3ace..f46b223 100644
--- a/client/client.c
+++ b/client/client.c
@@ -133,6 +133,12 @@ static void parseArgs(int *argc, char **argv[])
             case 0x103:
             case 0x104:
                 break;
+
+            case ':':
+            case '?':
+                fputs("\n", stderr);
+                usage(stderr, *argv[0]);
+                break;
         }
     }