diff --git a/chunk.py b/chunk.py
index 440f3f8..ed3a3ad 100644
--- a/chunk.py
+++ b/chunk.py
@@ -676,8 +676,8 @@ class ChunkRenderer(object):
             biomeColorData = textures.getBiomeData(self.world.worlddir,
                 self.chunkX, self.chunkY)
         # in the 32x32 block of biome data, what chunk is this?l
-        startX = (self.chunkX - int(math.floor(self.chunkX/32)*32))
-        startY = (self.chunkY - int(math.floor(self.chunkY/32)*32))
+        startX = self.chunkX % 32
+        startY = self.chunkY % 32
 
         # Each block is 24x24
         # The next block on the X axis adds 12px to x and subtracts 6px from y in the image
diff --git a/textures.py b/textures.py
index ae06f87..da6b35e 100644
--- a/textures.py
+++ b/textures.py
@@ -850,10 +850,7 @@ def getBiomeData(worlddir, chunkX, chunkY):
 
     global currentBiomeFile, currentBiomeData
 
-    biomeFile = "b.%d.%d.biome" % (
-        int(math.floor(chunkX/32)),
-        int(math.floor(chunkY/32))
-            )
+    biomeFile = "b.%d.%d.biome" % (chunkX // 32, chunkY // 32)
     if biomeFile == currentBiomeFile:
         return currentBiomeData