1 files changed, 1 insertions, 2 deletions

diff --git a/length.c b/length.c
index f2dadd25c..46242b529 100644
--- a/length.c
+++ b/length.c
@@ -7,8 +7,7 @@ extern int
 length_main(int argc, char * * argv)
 {
     if ( **(argv+1) == '-' ) {
-        fprintf(stderr, "Usage: length string\n");
-        exit(FALSE);
+        usage("length string\n");
     }
     printf("%d\n", strlen(argv[1]));
     return( TRUE);