diff --git a/lib/libc/nameser/ns_name.c b/lib/libc/nameser/ns_name.c
index f45278b989b..9ff3d3f9da7 100644
--- a/lib/libc/nameser/ns_name.c
+++ b/lib/libc/nameser/ns_name.c
@@ -1150,7 +1150,7 @@ labellen(const u_char *lp)
 				bitlen = 256;
 			return ((bitlen + 7 ) / 8 + 1);
 		}
-		return (-1);	/*%< unknwon ELT */
+		return (-1);	/*%< unknown ELT */
 	}
 	return (l);
 }