diff --git a/Assets/Resources/FSR3/shaders/fsr3upscaler/spd/ffx_spd.h b/Assets/Resources/FSR3/shaders/fsr3upscaler/spd/ffx_spd.h
index 4082817..6441419 100644
--- a/Assets/Resources/FSR3/shaders/fsr3upscaler/spd/ffx_spd.h
+++ b/Assets/Resources/FSR3/shaders/fsr3upscaler/spd/ffx_spd.h
@@ -735,7 +735,7 @@ void SpdDownsampleMips_0_1_LDSH(FfxUInt32 x, FfxUInt32 y, FfxUInt32x2 workGroupI
     if (mips <= 1)
         return;
 
-    for (FfxInt32 i = 0; i < 4; i++)
+    for (FfxUInt32 i = 0; i < 4; i++)
     {
         SpdStoreIntermediateH(x, y, v[i]);
         ffxSpdWorkgroupShuffleBarrier();