diff --git a/include/llvm/Bytecode/WriteBytecodePass.h b/include/llvm/Bytecode/WriteBytecodePass.h
index 8a061d298a7..387bd0a9ba7 100644
--- a/include/llvm/Bytecode/WriteBytecodePass.h
+++ b/include/llvm/Bytecode/WriteBytecodePass.h
@@ -28,7 +28,7 @@ class WriteBytecodePass : public ModulePass {
 public:
   WriteBytecodePass() 
     : Out(&std::cout), DeleteStream(false), CompressFile(true) {}
-  WriteBytecodePass(std::ostream *o, bool DS = false, bool CF = false ) 
+  WriteBytecodePass(std::ostream *o, bool DS = false, bool CF = true ) 
     : Out(o), DeleteStream(DS),  CompressFile(CF) {}
 
   inline ~WriteBytecodePass() {