diff --git a/llvm/lib/ExecutionEngine/ExecutionEngine.cpp b/llvm/lib/ExecutionEngine/ExecutionEngine.cpp
index 8a999da..e827d36 100644
--- a/llvm/lib/ExecutionEngine/ExecutionEngine.cpp
+++ b/llvm/lib/ExecutionEngine/ExecutionEngine.cpp
@@ -179,7 +179,7 @@
     }
     
     if (!state.getGlobalAddressReverseMap(locked).empty())
-      state.getGlobalAddressReverseMap(locked).erase(Addr);
+      state.getGlobalAddressReverseMap(locked).erase(OldVal);
     return OldVal;
   }