1 files changed, 6 insertions, 2 deletions
diff --git a/clang/include/clang/AST/ASTImporter.h b/clang/include/clang/AST/ASTImporter.h
index c82dcab35db..50eda635bf8 100644
--- a/clang/include/clang/AST/ASTImporter.h
+++ b/clang/include/clang/AST/ASTImporter.h
@@ -60,8 +60,12 @@ class TypeSourceInfo;
 
     static char ID;
 
-    ImportError() : Error(Unknown) { }
-    ImportError(const ImportError &Other) : Error(Other.Error) { }
+    ImportError() : Error(Unknown) {}
+    ImportError(const ImportError &Other) : Error(Other.Error) {}
+    ImportError &operator=(const ImportError &Other) {
+      Error = Other.Error;
+      return *this,
+    }
     ImportError(ErrorKind Error) : Error(Error) { }
 
     std::string toString() const;