diff --git a/gnome-session.spec b/gnome-session.spec
index 975d1d9..d2eddc8 100644
--- a/gnome-session.spec
+++ b/gnome-session.spec
@@ -44,6 +44,7 @@ BuildRequires: libXau-devel
 BuildRequires: libXrandr-devel
 BuildRequires: xorg-x11-xtrans-devel
 BuildRequires: mesa-libGL-devel
+BuildRequires: librsvg2-devel
 
 # this is so the configure checks find /usr/bin/halt etc.
 BuildRequires: usermode