diff --git a/src/Features/Core/Portable/AddFileBanner/AbstractAddFileBannerCodeRefactoringProvider.cs b/src/Features/Core/Portable/AddFileBanner/AbstractAddFileBannerCodeRefactoringProvider.cs
index 70f04971471e59a17c30ea365ca60c5f66cac109..a395ab78f23798a0f304f6619268a7cef8ecd879 100644
--- a/src/Features/Core/Portable/AddFileBanner/AbstractAddFileBannerCodeRefactoringProvider.cs
+++ b/src/Features/Core/Portable/AddFileBanner/AbstractAddFileBannerCodeRefactoringProvider.cs
@@ -114,14 +114,14 @@ public override async Task ComputeRefactoringsAsync(CodeRefactoringContext conte
                 return banner;
             }
 
-            var result = ArrayBuilder<SyntaxTrivia>.GetInstance();
+            using var _ = ArrayBuilder<SyntaxTrivia>.GetInstance(out var result);
             foreach (var trivia in banner)
             {
                 var updated = CreateTrivia(trivia, trivia.ToFullString().Replace(sourceName, destinationName));
                 result.Add(updated);
             }
 
-            return result.ToImmutableAndFree();
+            return result.ToImmutable();
         }
 
         private async Task<ImmutableArray<SyntaxTrivia>> TryGetBannerAsync(