diff --git a/desktop/xfce/addon/orage/pspec.xml b/desktop/xfce/addon/orage/pspec.xml
index 83426a65d4..0dbde05e7f 100644
--- a/desktop/xfce/addon/orage/pspec.xml
+++ b/desktop/xfce/addon/orage/pspec.xml
@@ -20,6 +20,7 @@
             <Dependency>gettext</Dependency>
             <Dependency>intltool</Dependency>
             <Dependency>db-devel</Dependency>
+            <Dependency>gtk2-devel</Dependency>
             <Dependency>popt-devel</Dependency>
             <Dependency>libical-devel</Dependency>
             <Dependency>dbus-glib-devel</Dependency>