diff --git a/src/gallium/drivers/swr/rasterizer/core/api.cpp b/src/gallium/drivers/swr/rasterizer/core/api.cpp
index 383a7ad65be..6c0d5dd68e2 100644
--- a/src/gallium/drivers/swr/rasterizer/core/api.cpp
+++ b/src/gallium/drivers/swr/rasterizer/core/api.cpp
@@ -765,7 +765,7 @@ void SetupMacroTileScissors(DRAW_CONTEXT *pDC)
         tileAligned  = (scissorInFixedPoint.xmin % KNOB_TILE_X_DIM) == 0;
         tileAligned &= (scissorInFixedPoint.ymin % KNOB_TILE_Y_DIM) == 0;
         tileAligned &= (scissorInFixedPoint.xmax % KNOB_TILE_X_DIM) == 0;
-        tileAligned &= (scissorInFixedPoint.xmax % KNOB_TILE_Y_DIM) == 0;
+        tileAligned &= (scissorInFixedPoint.ymax % KNOB_TILE_Y_DIM) == 0;
 
         pState->scissorsTileAligned &= tileAligned;