diff --git a/README.md b/README.md
index c7cca2f..953e788 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,7 @@ A cross platform front-end GUI of the popular [youtube-dl](https://rg3.github.io
 * [Python 2.7.3+](https://www.python.org/downloads)
 * [wxPython 3](https://wxpython.org/download.php)
 * [TwoDict](https://pypi.python.org/pypi/twodict)
+* [GNU gettext](https://www.gnu.org/software/gettext/) (to build the package)
 * [FFmpeg](https://ffmpeg.org/download.html) (optional, to post process video files)
 
 ## Downloads