diff --git a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
index 7d745ff..b312420 100644
--- a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
+++ b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
@@ -512,7 +512,7 @@
 
        // Code: [strchar x N]
        const char *StrBegin = MDS->begin();
-       for (unsigned i = 0, e = MDS->size(); i != e; ++i)
+       for (unsigned i = 0, e = MDS->length(); i != e; ++i)
         Record.push_back(StrBegin[i]);
     
        // Emit the finished record.