diff --git a/README.md b/README.md
index 987b6c6e..dd459d6f 100644
--- a/README.md
+++ b/README.md
@@ -40,8 +40,8 @@ The original video files will not be modified. Instead it creates a lossless exp
- l Speed up video
- ← Seek backward 1 sec
- → Seek forward 1 sec
-- . (period) Tiny seek forward
-- , (comma) Tiny seek backward
+- . (period) Tiny seek forward (1/60 sec)
+- , (comma) Tiny seek backward (1/60 sec)
- i Mark in / cut start point
- o Mark out / cut end point
- e Export selection (in the same dir as the video)