diff --git a/common/cmd_exit.c b/common/cmd_exit.c
index ed876d8..f3fc8f5 100644
--- a/common/cmd_exit.c
+++ b/common/cmd_exit.c
@@ -24,7 +24,7 @@
 #include <common.h>
 #include <command.h>
 
-int do_exit(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_exit(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int r;