diff --git a/Core/Sample/ISample.h b/Core/Sample/ISample.h
index b214612511ed42832df481870ff7cf699d79a5e1..49c30cfba38cfc3445cd2d115750114241185433 100644
--- a/Core/Sample/ISample.h
+++ b/Core/Sample/ISample.h
@@ -70,6 +70,7 @@ public:
     template<class T> std::vector<const T*> containedSubclass() const;
 };
 
+//! Returns vector of children of type T.
 template<class T>
 std::vector<const T*> ISample::containedSubclass() const
 {