diff --git a/armsrc/iso15693.c b/armsrc/iso15693.c
index 8dcd498bc..0c7d1335a 100644
--- a/armsrc/iso15693.c
+++ b/armsrc/iso15693.c
@@ -2941,9 +2941,9 @@ void SetTag15693Uid_v2(const uint8_t *uid) {
         { ISO15_REQ_DATARATE_HIGH, ISO15693_MAGIC_WRITE, 0x09, 0x47, 0x3f, 0x03, 0x8b, 0x00,  0x00, 0x00 },
         { ISO15_REQ_DATARATE_HIGH, ISO15693_MAGIC_WRITE, 0x09, 0x52, 0x00, 0x00, 0x00, 0x00,  0x00, 0x00 },
         // hf 15 raw -wac -d 02 e0 09 41 + uid first four bytes
-        {ISO15_REQ_DATARATE_HIGH, ISO15693_MAGIC_WRITE, 0x09, 0x41, uid[7], uid[6], uid[5], uid[4], 0x00, 0x00},
+        {ISO15_REQ_DATARATE_HIGH, ISO15693_MAGIC_WRITE, 0x09, 0x40, uid[7], uid[6], uid[5], uid[4], 0x00, 0x00},
         // hf 15 raw -wac -d 02 e0 09 40 + uid last four bytes
-        {ISO15_REQ_DATARATE_HIGH, ISO15693_MAGIC_WRITE, 0x09, 0x40, uid[3], uid[2], uid[1], uid[0], 0x00, 0x00}
+        {ISO15_REQ_DATARATE_HIGH, ISO15693_MAGIC_WRITE, 0x09, 0x41, uid[3], uid[2], uid[1], uid[0], 0x00, 0x00}
     };
 
     uint8_t buf[ISO15693_MAX_RESPONSE_LENGTH] = {0x00};