diff --git a/llvm/lib/CodeGen/MachineModuleInfo.cpp b/llvm/lib/CodeGen/MachineModuleInfo.cpp
index d9da7bc..deff625 100644
--- a/llvm/lib/CodeGen/MachineModuleInfo.cpp
+++ b/llvm/lib/CodeGen/MachineModuleInfo.cpp
@@ -308,6 +308,7 @@
 
   // Clean up exception info.
   LandingPads.clear();
+  PersonalityTypeCache = EHPersonality::Unknown;
   CallSiteMap.clear();
   TypeInfos.clear();
   FilterIds.clear();