diff --git a/src/core/model/simple-ref-count.h b/src/core/model/simple-ref-count.h
index 6739a7b5d..7715ae3a4 100644
--- a/src/core/model/simple-ref-count.h
+++ b/src/core/model/simple-ref-count.h
@@ -80,12 +80,15 @@ public:
   {}
   /**
    * Copy constructor
+   * \param o The object to be copied
    */
   SimpleRefCount (const SimpleRefCount &o)
     : m_count (1)
   {}
   /**
    * Assignment
+   * \param o The object to be copied
+   * \return A reference to the new object
    */
   SimpleRefCount &operator = (const SimpleRefCount &o)
   {
diff --git a/src/olsr/test/tc-regression-test.h b/src/olsr/test/tc-regression-test.h
index 72dfe340b..a50c7a675 100644
--- a/src/olsr/test/tc-regression-test.h
+++ b/src/olsr/test/tc-regression-test.h
@@ -30,7 +30,7 @@
 namespace ns3 {
 namespace olsr {
 /**
- * \ingroup olsr
+ * \ingroup olsr-test
  * \ingroup tests
  *
  * \brief Less trivial test of OLSR Topology Control message generation