diff --git a/boards/me25ls01-4y10td.json b/boards/me25ls01-4y10td.json
index 46c526a7c..9e1d63265 100644
--- a/boards/me25ls01-4y10td.json
+++ b/boards/me25ls01-4y10td.json
@@ -5,7 +5,7 @@
     },
     "core": "nRF5",
     "cpu": "cortex-m4",
-    "extra_flags": "-DARDUINO_WIO_WM1110 -DNRF52840_XXAA",
+    "extra_flags": "-DME25LS01_4Y10TD -DNRF52840_XXAA",
     "f_cpu": "64000000L",
     "hwids": [
       ["0x239A", "0x8029"],