diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 1ee10cd..8e0bf34 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1543,6 +1543,8 @@
 	INIT_WORK(&sdata->cleanup_stations_wk, ieee80211_cleanup_sdata_stas_wk);
 	INIT_DELAYED_WORK(&sdata->dfs_cac_timer_work,
 			  ieee80211_dfs_cac_timer_work);
+	INIT_DELAYED_WORK(&sdata->dec_tailroom_needed_wk,
+			  ieee80211_delayed_tailroom_dec);
 
 	for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
 		struct ieee80211_supported_band *sband;