1 files changed, 4 insertions, 1 deletions
diff --git a/lib/Serialization/ASTReaderDecl.cpp b/lib/Serialization/ASTReaderDecl.cpp
index 38b612cbd9..8dd53ee7d2 100644
--- a/lib/Serialization/ASTReaderDecl.cpp
+++ b/lib/Serialization/ASTReaderDecl.cpp
@@ -13,6 +13,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "ASTCommon.h"
+#include "ASTReaderInternals.h"
 #include "clang/Serialization/ASTReader.h"
 #include "clang/Sema/IdentifierResolver.h"
 #include "clang/Sema/Sema.h"
@@ -2104,7 +2105,9 @@ Decl *ASTReader::ReadDeclRecord(DeclID ID) {
       DeclContextVisibleUpdates &U = I->second;
       for (DeclContextVisibleUpdates::iterator UI = U.begin(), UE = U.end();
            UI != UE; ++UI) {
-        UI->second->DeclContextInfos[DC].NameLookupTableData = UI->first;
+        DeclContextInfo &Info = UI->second->DeclContextInfos[DC];
+        delete Info.NameLookupTableData;
+        Info.NameLookupTableData = UI->first;
       }
       PendingVisibleUpdates.erase(I);
     }