diff --git a/examples/SDL3-simple-demo/main.c b/examples/SDL3-simple-demo/main.c
index 5303438..5a30d53 100644
--- a/examples/SDL3-simple-demo/main.c
+++ b/examples/SDL3-simple-demo/main.c
@@ -161,8 +161,8 @@ SDL_AppResult SDL_AppEvent(void *appstate, SDL_Event *event)
             Clay_SetLayoutDimensions((Clay_Dimensions) { (float) event->window.data1, (float) event->window.data2 });
             break;
         case SDL_EVENT_MOUSE_WHEEL:
-            state->mouseWheel.x = event->wheel.x;
-            state->mouseWheel.y = event->wheel.y;
+            state->mouseWheel.x += event->wheel.x;
+            state->mouseWheel.y += event->wheel.y;
             break;
         default:
             break;