diff --git a/board/pdm360ng/pdm360ng.c b/board/pdm360ng/pdm360ng.c
index 8fe5ac8..29a095d 100644
--- a/board/pdm360ng/pdm360ng.c
+++ b/board/pdm360ng/pdm360ng.c
@@ -633,7 +633,7 @@
 }
 
 static int cmd_lcd_brightness(cmd_tbl_t *cmdtp, int flag,
-			      int argc, char *argv[])
+			      int argc, char * const argv[])
 {
 	if (argc < 2) {
 		cmd_usage(cmdtp);