diff --git a/doc/cpu.txt b/doc/cpu.txt
index 421ee6bdd..6df37c2b7 100644
--- a/doc/cpu.txt
+++ b/doc/cpu.txt
@@ -33,6 +33,18 @@
  * @{ */
 /** @} */
 
+/**
+ * \defgroup pic32 PIC32 Contiki Port
+ * \addtogroup cpu
+ * @{ */
+/** @} */
+
+/**
+ * \defgroup ADUCRF101 ADUCRF101
+ * \addtogroup cpu
+ * @{ */
+/** @} */
+
 /**
  * \defgroup native Native
  * \addtogroup cpu