diff --git a/srcpkgs/gdm/INSTALL b/srcpkgs/gdm/INSTALL
index 587e4627229..26ad51ed66a 100644
--- a/srcpkgs/gdm/INSTALL
+++ b/srcpkgs/gdm/INSTALL
@@ -7,6 +7,7 @@ post)
 		mkdir -p var/log/gdm
 		chown root:gdm var/log/gdm
 	fi
+	[ ! -d var/cache/gdm ] && mkdir -p var/cache/gdm
 	chown gdm:gdm var/lib/gdm > /dev/null
 	chown -R gdm:gdm var/lib/gdm/.gconf.mandatory
 	;;