diff --git a/src/Math/DualQuaternion.h b/src/Math/DualQuaternion.h
index 6d563cc3e..c6f82a1e4 100644
--- a/src/Math/DualQuaternion.h
+++ b/src/Math/DualQuaternion.h
@@ -53,6 +53,8 @@ template<class T> class DualQuaternion: public Dual<Quaternion<T>> {
             return {Quaternion<T>::rotation(angle, normalizedAxis), {{}, T(0)}};
         }
 
+        /** @todo Rotation about axis with arbitrary origin, screw motion */
+
         /**
          * @brief Translation dual quaternion
          * @param vector    Translation vector
diff --git a/src/Platform/AbstractContextHandler.h b/src/Platform/AbstractContextHandler.h
index fd342ca7c..9c6376342 100644
--- a/src/Platform/AbstractContextHandler.h
+++ b/src/Platform/AbstractContextHandler.h
@@ -23,7 +23,11 @@
 
 namespace Magnum { namespace Platform {
 
-/** @brief Base for OpenGL context handlers */
+/**
+@brief Base for OpenGL context handlers
+
+@todo GLX_MESA_query_renderer, EGL_MESA_query_renderer
+*/
 template<class Display, class VisualId, class Window> class AbstractContextHandler {
     public:
         /**