diff --git a/README.md b/README.md
index e7d5671a54a..6885f38a45a 100644
--- a/README.md
+++ b/README.md
@@ -138,7 +138,7 @@ sudo zypper install libX11-devel libexpat-devel libbz2-devel Mesa-libEGL-devel M
 
 ``` sh
 sudo pacman -S --needed base-devel git python2 python2-virtualenv python2-pip mesa cmake bzip2 libxmu glu \
-    pkg-config ttf-fira-sans harfbuzz ccache clang 
+    pkg-config ttf-fira-sans harfbuzz ccache clang autoconf2.13
 ```
 #### On Gentoo Linux