diff --git a/clang/lib/Analysis/GRState.cpp b/clang/lib/Analysis/GRState.cpp
index 4ad0a44..8ea1191 100644
--- a/clang/lib/Analysis/GRState.cpp
+++ b/clang/lib/Analysis/GRState.cpp
@@ -13,11 +13,15 @@
 
 #include "clang/Analysis/PathSensitive/GRStateTrait.h"
 #include "clang/Analysis/PathSensitive/GRState.h"
-#include "llvm/ADT/SmallSet.h"
 #include "clang/Analysis/PathSensitive/GRTransferFuncs.h"
+#include "llvm/ADT/SmallSet.h"
 #include "llvm/Support/raw_ostream.h"
+
 using namespace clang;
 
+// Give the vtable for ConstraintManager somewhere to live.
+ConstraintManager::~ConstraintManager() {}
+
 GRStateManager::~GRStateManager() {
   for (std::vector<GRState::Printer*>::iterator I=Printers.begin(),
         E=Printers.end(); I!=E; ++I)