diff --git a/board/prodrive/pdnb3/pdnb3.c b/board/prodrive/pdnb3/pdnb3.c
index 69f8f9b..3f2deed 100644
--- a/board/prodrive/pdnb3/pdnb3.c
+++ b/board/prodrive/pdnb3/pdnb3.c
@@ -29,7 +29,7 @@
 DECLARE_GLOBAL_DATA_PTR;
 
 /* Prototypes */
-int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 /* predefine these here for FPGA programming (before including fpga.c) */
 #define SET_FPGA(data)	*IXP425_GPIO_GPOUTR = (data)
@@ -210,7 +210,7 @@
 	return (0);
 }
 
-int do_fpga(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_fpga(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr;