1 files changed, 2 insertions, 3 deletions

diff --git a/coreutils/head.c b/coreutils/head.c
index d732461f7..f2c948300 100644
--- a/coreutils/head.c
+++ b/coreutils/head.c
@@ -49,9 +49,8 @@ int head_main(int argc, char **argv)
 
 #if !ENABLE_DEBUG_YANK_SUSv2 || ENABLE_FEATURE_FANCY_HEAD
         /* Allow legacy syntax of an initial numeric option without -n. */
-        if ((argc > 1) && (argv[1][0] == '-')
-                /* && (isdigit)(argv[1][1]) */
-                && (((unsigned int)(argv[1][1] - '0')) <= 9)
+        if (argc > 1 && argv[1][0] == '-'
+         && isdigit(argv[1][1])
         ) {
                 --argc;
                 ++argv;