diff --git a/bin/ax25dump.c b/bin/ax25dump.c
index f660b16..f2cef90 100644
--- a/bin/ax25dump.c
+++ b/bin/ax25dump.c
@@ -72,6 +72,10 @@ int main(int argc, char **argv) {
     if (ifname) {
         patty_client_setsockopt_if ifreq;
 
+        if (optind < argc) {
+            usage(argc, argv, "Too many arguments provided");
+        }
+
         info.flags = PATTY_KISS_TNC_FD;
 
         if ((client = patty_client_new(sock)) == NULL) {