diff --git a/src/shared/ad.c b/src/shared/ad.c
index 2d6fc62..f3fb428 100644
--- a/src/shared/ad.c
+++ b/src/shared/ad.c
@@ -48,7 +48,7 @@ struct bt_ad *bt_ad_new(void)
 	struct bt_ad *ad;
 
 	ad = new0(struct bt_ad, 1);
-	ad->max_len = BT_AD_MAX_DATA_LEN;
+	ad->max_len = BT_EA_MAX_DATA_LEN;
 	ad->service_uuids = queue_new();
 	ad->manufacturer_data = queue_new();
 	ad->solicit_uuids = queue_new();
diff --git a/src/shared/ad.h b/src/shared/ad.h
index 820b917..1190070 100644
--- a/src/shared/ad.h
+++ b/src/shared/ad.h
@@ -15,6 +15,7 @@
 #include "lib/uuid.h"
 
 #define BT_AD_MAX_DATA_LEN		31
+#define BT_EA_MAX_DATA_LEN		251
 #define BT_PA_MAX_DATA_LEN		252
 
 #define BT_AD_FLAGS			0x01