diff --git a/common/cmd_ubifs.c b/common/cmd_ubifs.c
index ed0e9db..9017041 100644
--- a/common/cmd_ubifs.c
+++ b/common/cmd_ubifs.c
@@ -42,7 +42,7 @@
 int ubifs_ls(char *dir_name);
 int ubifs_load(char *filename, u32 addr, u32 size);
 
-int do_ubifs_mount(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_ubifs_mount(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *vol_name;
 	int ret;
@@ -68,7 +68,7 @@
 	return 0;
 }
 
-int do_ubifs_ls(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_ubifs_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *filename = "/";
 	int ret;
@@ -89,7 +89,7 @@
 	return ret;
 }
 
-int do_ubifs_load(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_ubifs_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *filename;
 	char *endp;