diff --git a/lib/Analysis/GRExprEngineInternalChecks.cpp b/lib/Analysis/GRExprEngineInternalChecks.cpp
index 91fb6a8..06fe5b8 100644
--- a/lib/Analysis/GRExprEngineInternalChecks.cpp
+++ b/lib/Analysis/GRExprEngineInternalChecks.cpp
@@ -544,6 +544,7 @@
   
 public:
   CheckAttrNonNull() : BT(0) {}
+  ~CheckAttrNonNull() {}
 
   const void *getTag() {
     static int x = 0;