diff --git a/board/esd/voh405/voh405.c b/board/esd/voh405/voh405.c
index a5600de..6ed493e 100644
--- a/board/esd/voh405/voh405.c
+++ b/board/esd/voh405/voh405.c
@@ -33,7 +33,7 @@
 #define FPGA_DEBUG
 #endif
 
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 extern void lxt971_no_sleep(void);
 
 /* fpga configuration data - gzip compressed and generated by bin2c */
@@ -356,7 +356,7 @@
 	return state;
 }
 
-int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int query = argc == 1;
 	int state = 0;