diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 154b41af4157..3a3cd09bdab6 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -4753,7 +4753,7 @@ void ieee80211_recalc_dtim(struct ieee80211_local *local,
 {
 	u64 tsf = drv_get_tsf(local, sdata);
 	u64 dtim_count = 0;
-	u16 beacon_int = sdata->vif.bss_conf.beacon_int * 1024;
+	u32 beacon_int = sdata->vif.bss_conf.beacon_int * 1024;
 	u8 dtim_period = sdata->vif.bss_conf.dtim_period;
 	struct ps_data *ps;
 	u8 bcns_from_dtim;