diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index 11120bb..0f47948 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -496,6 +496,8 @@
 			err = 0;
 		if (!err) {
 			if (!addr) {
+				memset(wdev->wext.keys->data[idx], 0,
+				       sizeof(wdev->wext.keys->data[idx]));
 				wdev->wext.keys->params[idx].key_len = 0;
 				wdev->wext.keys->params[idx].cipher = 0;
 			}