diff --git a/net/mac80211/rc80211_minstrel.h b/net/mac80211/rc80211_minstrel.h
index ea86e67841549a060bf36617c55676877c780536..be6c3f35f48b30b2cb17a2ceb398fe37f6f593f3 100644
--- a/net/mac80211/rc80211_minstrel.h
+++ b/net/mac80211/rc80211_minstrel.h
@@ -59,7 +59,7 @@ struct minstrel_rate_stats {
 	/* statistis of packet delivery probability
 	 *  prob_ewma - exponential weighted moving average of prob
 	 *  prob_ewmsd - exp. weighted moving standard deviation of prob */
-	unsigned int prob_ewma;
+	u16 prob_ewma;
 	u16 prob_ewmv;
 
 	/* maximum retry counts */