diff --git a/tools/bugpoint/OptimizerDriver.cpp b/tools/bugpoint/OptimizerDriver.cpp
index 5f031dc14ce..047901fd9f6 100644
--- a/tools/bugpoint/OptimizerDriver.cpp
+++ b/tools/bugpoint/OptimizerDriver.cpp
@@ -57,7 +57,7 @@ bool BugDriver::writeProgramToFile(const std::string &Filename,
   std::ofstream Out(Filename.c_str(), io_mode);
   if (!Out.good()) return true;
   
-  WriteBitcodeToFile(M, Out);
+  WriteBitcodeToFile(M ? M : Program, Out);
   return false;
 }