diff --git a/HACKING.md b/HACKING.md
index 50ea4c5..34c0909 100644
--- a/HACKING.md
+++ b/HACKING.md
@@ -48,7 +48,7 @@ Dependencies
 ------------
 
 * autotools, gettext
-* intltool
+* intltool, libtool
 * libdrm (Optional, for DRM support)
 * libxcb, libxcb-randr (Optional, for RandR support)
 * libX11, libXxf86vm (Optional, for VidMode support)