diff --git a/net/ieee80211/ieee80211_tx.c b/net/ieee80211/ieee80211_tx.c
index d70e6b82715e..308fcd9ab1e3 100644
--- a/net/ieee80211/ieee80211_tx.c
+++ b/net/ieee80211/ieee80211_tx.c
@@ -223,7 +223,7 @@ struct ieee80211_txb *ieee80211_alloc_txb(int nr_frags, int txb_size,
 	if (!txb)
 		return NULL;
 
-	memset(txb, sizeof(struct ieee80211_txb), 0);
+	memset(txb, 0, sizeof(struct ieee80211_txb));
 	txb->nr_frags = nr_frags;
 	txb->frag_size = txb_size;