diff --git a/Source/WindWakerHD/rules.txt b/Source/WindWakerHD/rules.txt
index e842a391..49b49706 100644
--- a/Source/WindWakerHD/rules.txt
+++ b/Source/WindWakerHD/rules.txt
@@ -19,6 +19,12 @@ formatsExcluded = 0x41A # exclude the intro background texture
 overwriteWidth = <?=round($scaleFactorX*1920)?> 
 overwriteHeight = <?=round($scaleFactorY*1080)?> 
 
+[TextureRedefine] # game halfres upscaling
+width = 960
+height = 540
+overwriteWidth = <?=round($scaleFactorX*1920)?> 
+overwriteHeight = <?=round($scaleFactorY*1080)?> 
+
 [TextureRedefine] # gamepad rendering resolution
 width = 854
 height = 480