diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index f7b00481a9fe..f9e9170e977a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1434,6 +1434,7 @@ int iwl_cmd_echo_test(struct iwl_priv *priv)
 	int ret;
 	struct iwl_host_cmd cmd = {
 		.id = REPLY_ECHO,
+		.len = { 0 },
 		.flags = CMD_SYNC,
 	};