1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Serialization/ASTReader.cpp b/lib/Serialization/ASTReader.cpp
index f32d53fd8a..a4436d1671 100644
--- a/lib/Serialization/ASTReader.cpp
+++ b/lib/Serialization/ASTReader.cpp
@@ -655,7 +655,8 @@ ASTDeclContextNameLookupTrait::ReadData(internal_key_type,
                                         unsigned DataLen) {
   using namespace clang::io;
   unsigned NumDecls = ReadUnalignedLE16(d);
-  LE32DeclID *Start = (LE32DeclID *)d;
+  LE32DeclID *Start = reinterpret_cast<LE32DeclID *>(
+                        const_cast<unsigned char *>(d));
   return std::make_pair(Start, Start + NumDecls);
 }