diff --git a/tools/doxygen/modules.txt b/tools/doxygen/modules.txt
index c74b8f9e9..635bbe148 100644
--- a/tools/doxygen/modules.txt
+++ b/tools/doxygen/modules.txt
@@ -8,31 +8,6 @@ CPU, device drivers and platform code
  * \ingroup arch
  */
 
-/**
- * \addtogroup cc2538dk The cc2538 Development Kit platform
- * \ingroup platform
- */
-
-/**
- * \addtogroup cooja COOJA network simulator node
- * \ingroup platform
- */
-
-/**
- * \addtogroup jn516x The JN516x Board
- * \ingroup platform
- */
-
-/**
- * \addtogroup native_platform Native platform
- * \ingroup platform
- */
-
-/**
- * \addtogroup nrf52dk nRF52 Development Kit
- * \ingroup platform
- */
-
 /**
 \defgroup net IoT networking
 The communication protocols
@@ -93,16 +68,6 @@ Core system components such as processes and timers
 \ingroup arch
 */
 
-/**
-* \defgroup arm ARM CPUs
-* \ingroup dev
-*/
-
-/**
-* \addtogroup nrf52832 nrf52832 SoC
-* \ingroup dev
-*/
-
 /**
  * \defgroup apps Application-layer protocols and profiles
  * \ingroup net