1 files changed, 5 insertions, 1 deletions

diff --git a/dirname.c b/dirname.c
index 528b89a56..ce3cd6f03 100644
--- a/dirname.c
+++ b/dirname.c
@@ -28,7 +28,11 @@ extern int dirname_main(int argc, char **argv)
         char* s;
 
         if ((argc < 2) || (**(argv + 1) == '-')) {
-                usage("dirname [file ...]\n");
+                usage("dirname [FILENAME ...]\n"
+#ifndef BB_FEATURE_TRIVIAL_HELP
+                                "\nStrips non-directory suffix from FILENAME\n"
+#endif
+                                );
         }
         argv++;