1 files changed, 4 insertions, 0 deletions
diff --git a/openbox/prop.h b/openbox/prop.h
index 5bfad572..a9d1b573 100644
--- a/openbox/prop.h
+++ b/openbox/prop.h
@@ -56,6 +56,10 @@ typedef struct Atoms {
     Atom net_close_window;
     Atom net_wm_moveresize;
     Atom net_moveresize_window;
+
+    /* startup-notification extension */
+    Atom net_startup_id;
+
     /* application window properties */
     Atom net_wm_name;
     Atom net_wm_visible_name;