diff --git a/stack/btm/btm_ble_bgconn.c b/stack/btm/btm_ble_bgconn.c
index b61fcb9..628a5d0 100644
--- a/stack/btm/btm_ble_bgconn.c
+++ b/stack/btm/btm_ble_bgconn.c
@@ -332,8 +332,12 @@
                 p_cb->bg_dev_num --;
                 p_cur = p_bg_dev;
                 p_next = p_bg_dev + 1;
-                for (j = i + 1 ;j < BTM_BLE_MAX_BG_CONN_DEV_NUM && p_next->in_use ; j ++, p_cur ++, p_next ++ )
+                for (j = i + 1; j < BTM_BLE_MAX_BG_CONN_DEV_NUM && p_next->in_use;
+                     j ++, p_cur ++, p_next ++)
+                {
                     memcpy(p_cur, p_next, sizeof(tBTM_LE_BG_CONN_DEV));
+                    memset(p_next, 0, sizeof(tBTM_LE_BG_CONN_DEV));
+                }
             }
             ret = TRUE;
             break;