diff --git a/README.md b/README.md
index ea68dbf..57bcb2a 100644
--- a/README.md
+++ b/README.md
@@ -38,3 +38,5 @@ If you don't want to enable conversions, you can disable it in *config.yml*.
 On Debian-based systems:
 
     sudo apt-get install libavcodec-extra rtmpdump
+
+You also probably need to edit the *avconv* variable in *config.yml* so that it points to your ffmpeg/avconv binary (*/usr/bin/avconv* on Debian/Ubuntu).