diff --git a/llvm/lib/Archive/ArchiveInternals.h b/llvm/lib/Archive/ArchiveInternals.h
index baea544..08f20e7 100644
--- a/llvm/lib/Archive/ArchiveInternals.h
+++ b/llvm/lib/Archive/ArchiveInternals.h
@@ -77,7 +77,7 @@
                           std::vector<std::string>& symbols,
                           std::string* ErrMsg);
   
-  Module* GetBitcodeSymbols(const unsigned char*Buffer,unsigned Length,
+  Module* GetBitcodeSymbols(const char *Buffer, unsigned Length,
                             const std::string& ModuleID,
                             LLVMContext& Context,
                             std::vector<std::string>& symbols,