diff --git a/src/Platform/NaClApplication.cpp b/src/Platform/NaClApplication.cpp
index 06a6a3c56..69f4cd666 100644
--- a/src/Platform/NaClApplication.cpp
+++ b/src/Platform/NaClApplication.cpp
@@ -102,7 +102,7 @@ bool NaClApplication::HandleInputEvent(const pp::InputEvent& event) {
 
         case PP_INPUTEVENT_TYPE_MOUSEMOVE: {
             pp::MouseInputEvent mouseEvent(event);
-            MouseMoveEvent e({mouseEvent.GetPosition().x(), mouseEvent.GetPosition().y()}, static_cast<InputEvent::Modifier>(mouseEvent.GetModifiers()));
+            MouseMoveEvent e({mouseEvent.GetPosition().x(), mouseEvent.GetPosition().y()},  {mouseEvent.GetMovement().x(), mouseEvent.GetMovement().y()}, static_cast<InputEvent::Modifier>(mouseEvent.GetModifiers()));
             mouseMoveEvent(e);
             if(!e.isAccepted()) return false;
             break;
diff --git a/src/Platform/NaClApplication.h b/src/Platform/NaClApplication.h
index a064b2581..135e3f171 100644
--- a/src/Platform/NaClApplication.h
+++ b/src/Platform/NaClApplication.h
@@ -386,10 +386,17 @@ class NaClApplication::MouseMoveEvent: public NaClApplication::InputEvent {
         /** @brief Position */
         inline Math::Vector2<int> position() const { return _position; }
 
+        /**
+         * @brief Relative position
+         *
+         * Position relative to previous event.
+         */
+        inline Math::Vector2<int> relativePosition() const { return _relativePosition; }
+
     private:
-        inline MouseMoveEvent(const Math::Vector2<int>& position, Modifiers modifiers): InputEvent(modifiers), _position(position) {}
+        inline MouseMoveEvent(const Math::Vector2<int>& position, const Math::Vector2<int>& relativePosition, Modifiers modifiers): InputEvent(modifiers), _position(position), _relativePosition(relativePosition) {}
 
-        const Math::Vector2<int> _position;
+        const Math::Vector2<int> _position, _relativePosition;
 };
 
 CORRADE_ENUMSET_OPERATORS(NaClApplication::Flags)
diff --git a/src/Platform/Sdl2Application.h b/src/Platform/Sdl2Application.h
index 996a780b8..6118890b9 100644
--- a/src/Platform/Sdl2Application.h
+++ b/src/Platform/Sdl2Application.h
@@ -212,23 +212,21 @@ class Sdl2Application::InputEvent {
         /**
          * @brief Set event as accepted
          *
-         * Does nothing. Included only for compatibility with
-         * NaClApplication::InputEvent.
+         * If the event is ignored (i.e., not set as accepted), it might be
+         * propagated elsewhere. By default is each event ignored.
          */
-        inline void setAccepted(bool = true) {}
+        inline void setAccepted(bool accepted = true) { _accepted = accepted; }
 
-        /**
-         * @brief Whether the event is accepted
-         *
-         * Always returns true. Included only for compatibility with
-         * NaClApplication::InputEvent.
-         */
-        inline bool isAccepted() const { return true; }
+        /** @brief Whether the event is accepted */
+        inline bool isAccepted() { return _accepted; }
 
     #ifndef DOXYGEN_GENERATING_OUTPUT
     protected:
-        inline InputEvent() {}
+        inline InputEvent(): _accepted(false) {}
     #endif
+
+    private:
+        bool _accepted;
 };
 
 /**
@@ -390,7 +388,7 @@ class Sdl2Application::MouseMoveEvent: public Sdl2Application::InputEvent {
         /**
          * @brief Relative position
          *
-         * Position relative to previous event
+         * Position relative to previous event.
          */
         inline Math::Vector2<int> relativePosition() const { return _relativePosition; }