diff --git a/Source/Core/VideoBackends/Software/Rasterizer.cpp b/Source/Core/VideoBackends/Software/Rasterizer.cpp
index b7170527d5..2a341d8093 100644
--- a/Source/Core/VideoBackends/Software/Rasterizer.cpp
+++ b/Source/Core/VideoBackends/Software/Rasterizer.cpp
@@ -291,9 +291,9 @@ static void BuildBlock(s32 blockX, s32 blockY)
   u32 indref = bpmem.tevindref.hex;
   for (unsigned int i = 0; i < bpmem.genMode.numindstages; i++)
   {
-    u32 texmap = indref & 3;
+    u32 texmap = indref & 7;
     indref >>= 3;
-    u32 texcoord = indref & 3;
+    u32 texcoord = indref & 7;
     indref >>= 3;
 
     CalculateLOD(&rasterBlock.IndirectLod[i], &rasterBlock.IndirectLinear[i], texmap, texcoord);