diff --git a/src/vs/workbench/contrib/notebook/browser/diff/notebookTextDiffEditor.ts b/src/vs/workbench/contrib/notebook/browser/diff/notebookTextDiffEditor.ts
index 2ba3ee64067..418911e15b2 100644
--- a/src/vs/workbench/contrib/notebook/browser/diff/notebookTextDiffEditor.ts
+++ b/src/vs/workbench/contrib/notebook/browser/diff/notebookTextDiffEditor.ts
@@ -16,7 +16,7 @@ import { CancellationToken } from 'vs/base/common/cancellation';
 import { DiffElementViewModelBase, SideBySideDiffElementViewModel, SingleSideDiffElementViewModel } from 'vs/workbench/contrib/notebook/browser/diff/diffElementViewModel';
 import { IInstantiationService } from 'vs/platform/instantiation/common/instantiation';
 import { CellDiffSideBySideRenderer, CellDiffSingleSideRenderer, NotebookCellTextDiffListDelegate, NotebookTextDiffList } from 'vs/workbench/contrib/notebook/browser/diff/notebookTextDiffList';
-import { IContextKeyService, RawContextKey } from 'vs/platform/contextkey/common/contextkey';
+import { IContextKeyService } from 'vs/platform/contextkey/common/contextkey';
 import { diffDiagonalFill, diffInserted, diffRemoved, editorBackground, focusBorder, foreground } from 'vs/platform/theme/common/colorRegistry';
 import { INotebookEditorWorkerService } from 'vs/workbench/contrib/notebook/common/services/notebookWorkerService';
 import { IConfigurationService } from 'vs/platform/configuration/common/configuration';