diff --git a/boards/nucleo_f446ze.json b/boards/nucleo_f446ze.json
index 993b4189..e18c3ceb 100644
--- a/boards/nucleo_f446ze.json
+++ b/boards/nucleo_f446ze.json
@@ -6,7 +6,7 @@
     "f_cpu": "180000000L",
     "mcu": "stm32f446zet6",
     "product_line": "STM32F446xx",
-    "variant": "STM32F4XX/F446Z(C-E)(H-J-T)"
+    "variant": "STM32F4xx/F446Z(C-E)(H-J-T)"
   },
   "connectivity": [
     "can"