diff --git a/libs/app/include/psemek/app/events.hpp b/libs/app/include/psemek/app/events.hpp
index d8d7b69f..a434beb5 100644
--- a/libs/app/include/psemek/app/events.hpp
+++ b/libs/app/include/psemek/app/events.hpp
@@ -18,6 +18,7 @@ namespace psemek::app
 	struct mouse_move_event
 	{
 		geom::point<int, 2> position;
+		geom::vector<int, 2> relative;
 	};
 
 	struct mouse_wheel_event
diff --git a/libs/sdl2/source/events.cpp b/libs/sdl2/source/events.cpp
index 348121cf..37b486d7 100644
--- a/libs/sdl2/source/events.cpp
+++ b/libs/sdl2/source/events.cpp
@@ -171,7 +171,7 @@ namespace psemek::sdl2
 			}
 			break;
 		case SDL_MOUSEMOTION:
-			handler.on_event(app::mouse_move_event{{e.motion.x, e.motion.y}});
+			handler.on_event(app::mouse_move_event{{e.motion.x, e.motion.y}, {e.motion.xrel, e.motion.yrel}});
 			break;
 		case SDL_MOUSEWHEEL:
 			handler.on_event(app::mouse_wheel_event{e.wheel.y});