diff --git a/clang/lib/Frontend/HeaderIncludeGen.cpp b/clang/lib/Frontend/HeaderIncludeGen.cpp
--- a/clang/lib/Frontend/HeaderIncludeGen.cpp
+++ b/clang/lib/Frontend/HeaderIncludeGen.cpp
@@ -43,6 +43,9 @@
       delete OutputFile;
   }
 
+  HeaderIncludesCallback(const HeaderIncludesCallback &) = delete;
+  HeaderIncludesCallback &operator=(const HeaderIncludesCallback &) = delete;
+
   void FileChanged(SourceLocation Loc, FileChangeReason Reason,
                    SrcMgr::CharacteristicKind FileType,
                    FileID PrevFID) override;
@@ -90,6 +93,10 @@
       delete OutputFile;
   }
 
+  HeaderIncludesJSONCallback(const HeaderIncludesJSONCallback &) = delete;
+  HeaderIncludesJSONCallback &
+  operator=(const HeaderIncludesJSONCallback &) = delete;
+
   void EndOfMainFile() override;
 
   void FileChanged(SourceLocation Loc, FileChangeReason Reason,