diff --git a/board/esd/pci405/cmd_pci405.c b/board/esd/pci405/cmd_pci405.c
index 1d14611..2fc9fda 100644
--- a/board/esd/pci405/cmd_pci405.c
+++ b/board/esd/pci405/cmd_pci405.c
@@ -39,7 +39,7 @@
 /*
  * Command loadpci: wait for signal from host and boot image.
  */
-int do_loadpci(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_loadpci(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned int *ptr = 0;
 	int count = 0;