diff --git a/tools/celtenc.c b/tools/celtenc.c
index a9fc64c978d0a35dabfc206a57f63ee03c3c77b8..8cbb58c5a7c15113e90b83f53cc1ac8328cc75c3 100644
--- a/tools/celtenc.c
+++ b/tools/celtenc.c
@@ -211,7 +211,7 @@ void usage(void)
    printf ("  -                 stdout\n");
    printf ("\n");  
    printf ("Options:\n");
-   printf (" --bitrate n        Encoding bit-rate\n"); 
+   printf (" --bitrate n        Encoding bit-rate in kbit/sec\n"); 
    printf (" --comp n           Encoding complexity (0-10)\n");
    printf (" --framesize n      Frame size (Default: 256)\n");
    printf (" --skeleton         Outputs ogg skeleton metadata (may cause incompatibilities)\n");