diff --git a/srcpkgs/gnome-session/template b/srcpkgs/gnome-session/template
index d4c8febe23..ab258b9b55 100644
--- a/srcpkgs/gnome-session/template
+++ b/srcpkgs/gnome-session/template
@@ -8,7 +8,7 @@ hostmakedepends="pkg-config intltool libxslt docbook-xsl"
 makedepends="upower-devel json-glib-devel gtk+3-devel>=3.8
  startup-notification-devel libXtst-devel systemd-devel
  gsettings-desktop-schemas-devel>=3.8.0 dbus-glib-devel
- gnome-desktop-devel>=3.8"
+ gnome-desktop-devel>=3.8 libSM-devel"
 short_desc="GNOME session management utilities"
 maintainer="Juan RP <xtraeme@gmail.com>"
 homepage="http://www.gnome.org"