diff --git a/lib/CodeGen/AsmPrinter/Win64Exception.cpp b/lib/CodeGen/AsmPrinter/Win64Exception.cpp
index 567e0651e34..80edc405ca9 100644
--- a/lib/CodeGen/AsmPrinter/Win64Exception.cpp
+++ b/lib/CodeGen/AsmPrinter/Win64Exception.cpp
@@ -106,7 +106,7 @@ void Win64Exception::endFunction(const MachineFunction *) {
     // Emit the tables appropriate to the personality function in use. If we
     // don't recognize the personality, assume it uses an Itanium-style LSDA.
     const Function *Per = MMI->getPersonality();
-    if (Per->getName() == "__C_specific_handler")
+    if (Per && Per->getName() == "__C_specific_handler")
       emitCSpecificHandlerTable();
     else
       emitExceptionTable();