diff --git a/lib/CodeGen/MachineModuleInfo.cpp b/lib/CodeGen/MachineModuleInfo.cpp
index ad4f01b..f813a55 100644
--- a/lib/CodeGen/MachineModuleInfo.cpp
+++ b/lib/CodeGen/MachineModuleInfo.cpp
@@ -262,6 +262,7 @@
   // Always emit some info, by default "no personality" info.
   Personalities.push_back(NULL);
   AddrLabelSymbols = 0;
+  TheModule = 0;
 }
 
 MachineModuleInfo::MachineModuleInfo()