diff --git a/src/platforms/rcore_web_emscripten.c b/src/platforms/rcore_web_emscripten.c
index 090b74901..6e7d40e2b 100644
--- a/src/platforms/rcore_web_emscripten.c
+++ b/src/platforms/rcore_web_emscripten.c
@@ -1771,7 +1771,7 @@ static EM_BOOL EmscriptenMouseWheelCallback(int eventType, const EmscriptenWheel
     if (eventType == EMSCRIPTEN_EVENT_WHEEL)
     {
         CORE.Input.Mouse.currentWheelMove.x = (float)wheelEvent->deltaX;
-        CORE.Input.Mouse.currentWheelMove.y = (float)wheelEvent->deltaY;
+        CORE.Input.Mouse.currentWheelMove.y = -(float)wheelEvent->deltaY;
     }
 
     return 1; // The event was consumed by the callback handler