diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c b/drivers/net/wireless/ath/wcn36xx/smd.c
index 5445277dd8de66397f3ae02413fe4de1108aafb7..28d3ee3ad4b9c3ff9f70080a85c34beac28bb54e 100644
--- a/drivers/net/wireless/ath/wcn36xx/smd.c
+++ b/drivers/net/wireless/ath/wcn36xx/smd.c
@@ -485,7 +485,6 @@ static void init_hal_msg(struct wcn36xx_hal_msg_header *hdr,
 
 #define PREPARE_HAL_PTT_MSG_BUF(send_buf, p_msg_body) \
 	do {							\
-		memset(send_buf, 0, p_msg_body->header.len); \
 		memcpy(send_buf, p_msg_body, p_msg_body->header.len); \
 	} while (0)