diff --git a/arch/cpu/arm/arm.txt b/arch/cpu/arm/arm.txt
index 526486662..340cd6cb1 100644
--- a/arch/cpu/arm/arm.txt
+++ b/arch/cpu/arm/arm.txt
@@ -2,18 +2,3 @@
  * \defgroup cmsis CMSIS (Cortex Microcontroller Software Interface Standard)
  * \ingroup arm
  */
-
-/**
- * \defgroup aducrf101 ADUCRF101
- * \ingroup arm
- */
-
-/**
- * \defgroup at91sam7s AT91SAM7S
- * \ingroup arm
- */
-
-/**
- * \defgroup stm32f103 STM32F103
- * \ingroup arm
- */
diff --git a/tools/doxygen/modules.txt b/tools/doxygen/modules.txt
index 246258678..c74b8f9e9 100644
--- a/tools/doxygen/modules.txt
+++ b/tools/doxygen/modules.txt
@@ -18,11 +18,6 @@ CPU, device drivers and platform code
  * \ingroup platform
  */
 
-/**
- * \addtogroup exp5438 MSP430F5438 Experimenter Board
- * \ingroup platform
- */
-
 /**
  * \addtogroup jn516x The JN516x Board
  * \ingroup platform