diff --git a/clang/lib/Sema/SemaCodeComplete.cpp b/clang/lib/Sema/SemaCodeComplete.cpp
--- a/clang/lib/Sema/SemaCodeComplete.cpp
+++ b/clang/lib/Sema/SemaCodeComplete.cpp
@@ -1828,19 +1828,6 @@
   Results.AddResult(CodeCompletionResult(Builder.TakeString()));
 }
 
-static void printOverrideString(llvm::raw_ostream &OS,
-                                CodeCompletionString *CCS) {
-  for (const auto &C : *CCS) {
-    if (C.Kind == CodeCompletionString::CK_Optional)
-      printOverrideString(OS, C.Optional);
-    else
-      OS << C.Text;
-    // Add a space after return type.
-    if (C.Kind == CodeCompletionString::CK_ResultType)
-      OS << ' ';
-  }
-}
-
 static void AddOverrideResults(ResultBuilder &Results,
                                const CodeCompletionContext &CCContext,
                                CodeCompletionBuilder &Builder) {
@@ -3162,19 +3149,37 @@
       PP, Ctx, Result, IncludeBriefComments, CCContext, Policy);
 }
 
+/// Turns a completion string for a declaration into a textual representation.
+/// The result contains only 'typed text' and 'text' chunks.
+void TurnDeclarationToText(const CodeCompletionString &CCS,
+                           CodeCompletionBuilder &Result) {
+  for (auto &Chunk : CCS) {
+    if (Chunk.Kind == CodeCompletionString::CK_Optional) {
+      TurnDeclarationToText(*Chunk.Optional, Result);
+      continue;
+    }
+    if (Chunk.Kind == CodeCompletionString::CK_TypedText)
+      Result.AddTypedTextChunk(Chunk.Text);
+    else
+      Result.AddTextChunk(Chunk.Text);
+    // Add a space after return type.
+    if (Chunk.Kind == CodeCompletionString::CK_ResultType)
+      Result.AddChunk(CodeCompletionString::CK_HorizontalSpace);
+  }
+}
+
 CodeCompletionString *
 CodeCompletionResult::createCodeCompletionStringForOverride(
     Preprocessor &PP, ASTContext &Ctx, CodeCompletionBuilder &Result,
     bool IncludeBriefComments, const CodeCompletionContext &CCContext,
     PrintingPolicy &Policy) {
-  std::string OverrideSignature;
-  llvm::raw_string_ostream OS(OverrideSignature);
   auto *CCS = createCodeCompletionStringForDecl(PP, Ctx, Result,
                                                 /*IncludeBriefComments=*/false,
                                                 CCContext, Policy);
-  printOverrideString(OS, CCS);
-  OS << " override";
-  Result.AddTypedTextChunk(Result.getAllocator().CopyString(OS.str()));
+  // For overrides all chunks go into the result, none are informative.
+  TurnDeclarationToText(*CCS, Result);
+  Result.AddChunk(CodeCompletionString::CK_HorizontalSpace);
+  Result.AddTextChunk("override");
   return Result.TakeString();
 }