diff --git a/include/utils/Tokenizer.h b/include/utils/Tokenizer.h
index 21e58e6..c7db5fb 100644
--- a/include/utils/Tokenizer.h
+++ b/include/utils/Tokenizer.h
@@ -28,7 +28,7 @@
  * A simple tokenizer for loading and parsing ASCII text files line by line.
  */
 class Tokenizer {
-    Tokenizer(const String8& filename, FileMap* fileMap, const char* buffer, size_t length);
+    Tokenizer(const String8& filename, FileMap* fileMap, char* buffer, size_t length);
 
 public:
     ~Tokenizer();
@@ -110,7 +110,7 @@
 
     String8 mFilename;
     FileMap* mFileMap;
-    const char* mBuffer;
+    char* mBuffer;
     size_t mLength;
 
     const char* mCurrent;