diff --git a/doc/ot_api_doc.h b/doc/ot_api_doc.h
index af7348e3b..c0c5a72e1 100644
--- a/doc/ot_api_doc.h
+++ b/doc/ot_api_doc.h
@@ -164,7 +164,6 @@
  * @defgroup plat-time                Time Service
  * @defgroup plat-toolchain           Toolchain
  * @defgroup plat-trel                TREL
- * @defgroup plat-uart                UART
  *
  * @}
  *