diff --git a/README.md b/README.md
index 0157e85b..61de6885 100644
--- a/README.md
+++ b/README.md
@@ -41,7 +41,8 @@ For old shortcuts see here:
 https://github.com/mifi/lossless-cut/blob/41d6991c11b0a82b08344fd22a1ea094af217417/README.md#keyboard-shortcuts
 
 ### Known issues
-- If you get an error when cutting any kind of file under Windows, please check your anti-virus. It might be blocking execution of ffmpeg, see https://github.com/mifi/lossless-cut/issues/18
+- Output videos will have an empty portion in the beginning, see discussion in [#13](https://github.com/mifi/lossless-cut/pull/13)
+- If you get an error when cutting any kind of file under Windows, please check your anti-virus. It might be blocking execution of ffmpeg, see [#18](https://github.com/mifi/lossless-cut/issues/18)
 
 ## Development building / running