diff --git a/tmux.c b/tmux.c
index ecea49c6..a68d5456 100644
--- a/tmux.c
+++ b/tmux.c
@@ -1,4 +1,4 @@
-/* $Id: tmux.c,v 1.15 2007-09-27 10:09:37 nicm Exp $ */
+/* $Id: tmux.c,v 1.16 2007-09-27 20:54:43 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -187,7 +187,7 @@ main(int argc, char **argv)
 
 	for (i = 0; i < NOP; i++) {
 		op = op_table + i;
-		if (strncmp(argv[0], op->cmd, strlen(op->cmd)) == 0 ||
+		if (strncmp(argv[0], op->cmd, strlen(argv[0])) == 0 ||
 		    (op->alias != NULL && strcmp(argv[0], op->alias) == 0))
 			exit(op->fn(path, argc, argv));
 	}