diff --git a/playback.c b/playback.c
index 98b3eaa..030cfec 100644
--- a/playback.c
+++ b/playback.c
@@ -129,7 +129,7 @@ int handle_mouse(char* details, int udevice_fd) {
 		emit(udevice_fd, EV_REL, REL_X, x);
 	}
 	if(y != 0) {
-		emit(udevice_fd, EV_REL, REL_Y, y);
+		emit(udevice_fd, EV_REL, REL_Y, -1 * y);
 	}
 	
 	if(left != current_left) {