diff --git a/src/battle_transition.c b/src/battle_transition.c
index 11f9cddf4b..c23578e608 100644
--- a/src/battle_transition.c
+++ b/src/battle_transition.c
@@ -1907,7 +1907,11 @@ static bool8 ClockwiseWipe_TopRight(struct Task *task)
 {
     sTransitionData->VBlank_DMA = FALSE;
 
+#ifdef UBFIX
+    InitBlackWipe(sTransitionData->data, DISPLAY_WIDTH / 2, DISPLAY_HEIGHT / 2, sTransitionData->tWipeEndX, 0, 1, 1);
+#else
     InitBlackWipe(sTransitionData->data, DISPLAY_WIDTH / 2, DISPLAY_HEIGHT / 2, sTransitionData->tWipeEndX, -1, 1, 1);
+#endif
     do
     {
         gScanlineEffectRegBuffers[0][sTransitionData->tWipeCurrY] = (sTransitionData->tWipeCurrX + 1) | ((DISPLAY_WIDTH / 2) << 8);