diff --git a/clang/lib/Serialization/Module.cpp b/clang/lib/Serialization/Module.cpp
index 77dcc4f..2eb3971 100644
--- a/clang/lib/Serialization/Module.cpp
+++ b/clang/lib/Serialization/Module.cpp
@@ -45,6 +45,13 @@
 {}
 
 ModuleFile::~ModuleFile() {
+  for (DeclContextInfosMap::iterator I = DeclContextInfos.begin(),
+       E = DeclContextInfos.end();
+       I != E; ++I) {
+    if (I->second.NameLookupTableData)
+      delete I->second.NameLookupTableData;
+  }
+  
   delete static_cast<ASTIdentifierLookupTable *>(IdentifierLookupTable);
   delete static_cast<HeaderFileInfoLookupTable *>(HeaderFileInfoTable);
   delete static_cast<ASTSelectorLookupTable *>(SelectorLookupTable);