diff --git a/mozilla/mail/config/basemail-unix b/mozilla/mail/config/basemail-unix
index 141816cf2ad..2f7b160c368 100644
--- a/mozilla/mail/config/basemail-unix
+++ b/mozilla/mail/config/basemail-unix
@@ -152,6 +152,7 @@ components/xpconnect.xpt
 ; 
 
 libgkgfx.so 
+libgtksuperwin.so
 libgtkxtbin.so 
 libgtkembedmoz.so 
 libxlibrgb.so