diff --git a/INSTALL b/INSTALL
index e52528c8d7..d5432d72ae 100644
--- a/INSTALL
+++ b/INSTALL
@@ -36,6 +36,7 @@ Debian/Ubuntu
 -------------
 
 * mono-gmcs
+* libmono-winforms2.0-cil
 * cli-common-dev (>= 2.10)
 * freetype
 * openal