diff --git a/src/vs/platform/theme/common/colorRegistry.ts b/src/vs/platform/theme/common/colorRegistry.ts
index e082783620796049512caf1486755e0c0d1ed4d3..6b799c0333f42e877a7f2b8ead2dd4610180a751 100644
--- a/src/vs/platform/theme/common/colorRegistry.ts
+++ b/src/vs/platform/theme/common/colorRegistry.ts
@@ -292,7 +292,7 @@ export const diffRemoved = registerColor('diffEditor.removedTextBackground', { d
 export const diffInsertedOutline = registerColor('diffEditor.insertedTextBorder', { dark: null, light: null, hc: '#33ff2eff' }, nls.localize('diffEditorInsertedOutline', 'Outline color for the text that got inserted.'));
 export const diffRemovedOutline = registerColor('diffEditor.removedTextBorder', { dark: null, light: null, hc: '#FF008F' }, nls.localize('diffEditorRemovedOutline', 'Outline color for text that got removed.'));
 
-export const diffBorder = registerColor('diffEditor.diffEditorBorder', { dark: '#444444', light: '#E7E7E7', hc: contrastBorder }, nls.localize('diffEditorBorder', 'Border color between the original and modified diff editors.'));
+export const diffBorder = registerColor('diffEditor.border', { dark: null, light: null, hc: contrastBorder }, nls.localize('diffEditorBorder', 'Border color between the two text editors.'));
 
 /**
  * Merge-conflict colors