diff --git a/targets/targets.json b/targets/targets.json
index d50114439d..b92dca3488 100644
--- a/targets/targets.json
+++ b/targets/targets.json
@@ -6994,7 +6994,7 @@
             "tickless-from-us-ticker": true,
             "mpu-rom-end": "0x1fffffff"
         },
-        "device_has": [
+        "device_has_add": [
             "USTICKER",
             "LPTICKER",
             "RTC",