diff --git a/PVRTCEncoder/include/PVRTCCompressor.h b/PVRTCEncoder/include/PVRTCCompressor.h
index 657c71a..c0d9255 100644
--- a/PVRTCEncoder/include/PVRTCCompressor.h
+++ b/PVRTCEncoder/include/PVRTCCompressor.h
@@ -80,6 +80,8 @@ namespace PVRTCC {
                 bool bTwoBitMode = false,
                 const EWrapMode wrapMode = eWrapMode_Wrap);
 
+  static const uint32 kBlockSize = sizeof(uint64);
+
 }  // namespace PVRTCC
 
 #endif  // PVRTCENCODER_INCLUDE_PVRTCCOMPRESSOR_H_
diff --git a/PVRTCEncoder/src/Decompressor.cpp b/PVRTCEncoder/src/Decompressor.cpp
index 3e906ec..48d2ecb 100644
--- a/PVRTCEncoder/src/Decompressor.cpp
+++ b/PVRTCEncoder/src/Decompressor.cpp
@@ -308,7 +308,6 @@ namespace PVRTCC {
 
     const uint32 blocksW = bTwoBitMode? (w / 8) : (w / 4);
     const uint32 blocksH = h / 4;
-    const uint32 blockSz = 8;
 
     for(uint32 j = 0; j < blocksH; j++) {
       for(uint32 i = 0; i < blocksW; i++) {
@@ -317,7 +316,7 @@ namespace PVRTCC {
         // linearize them...
         uint32 idx = Interleave(j, i);
 
-        uint32 offset = idx * blockSz;
+        uint32 offset = idx * kBlockSize;
         blocks.push_back( Block(dcj.inBuf + offset) );
       }
     }