diff --git a/bin/sh/miscbltin.c b/bin/sh/miscbltin.c
index 51ecee6c0cc..d36f9e39ffe 100644
--- a/bin/sh/miscbltin.c
+++ b/bin/sh/miscbltin.c
@@ -268,7 +268,7 @@ umaskcmd(int argc __unused, char **argv)
 			mask = 0;
 			do {
 				if (*ap >= '8' || *ap < '0')
-					error("Illegal number: %s", argv[1]);
+					error("Illegal number: %s", *argptr);
 				mask = (mask << 3) + (*ap - '0');
 			} while (*++ap != '\0');
 			umask(mask);