diff --git a/port/arduino/BTstack.cpp b/port/arduino/BTstack.cpp
index f99c282d0..f9a6e750b 100644
--- a/port/arduino/BTstack.cpp
+++ b/port/arduino/BTstack.cpp
@@ -197,7 +197,7 @@ static void extract_service(le_service_t * service, uint8_t * packet){
     service->start_group_handle = little_endian_read_16(packet, 4);
     service->end_group_handle   = little_endian_read_16(packet, 6);
     service->uuid16 = 0;
-    swap128(&packet[8], service->uuid128);
+    reverse_128(&packet[8], service->uuid128);
     if (uuid_has_bluetooth_prefix(service->uuid128)){
         service->uuid16 = big_endian_read_32(service->uuid128, 0);
     }
@@ -209,7 +209,7 @@ static void extract_characteristic(le_characteristic_t * characteristic, uint8_t
     characteristic->end_handle =   little_endian_read_16(packet, 8);
     characteristic->properties =   little_endian_read_16(packet, 10);
     characteristic->uuid16 = 0;
-    swap128(&packet[12], characteristic->uuid128);
+    reverse_128(&packet[12], characteristic->uuid128);
     if (uuid_has_bluetooth_prefix(characteristic->uuid128)){
         characteristic->uuid16 = big_endian_read_32(characteristic->uuid128, 0);
     }