diff --git a/src/styles.ts b/src/styles.ts
index f11930c5..fc263056 100644
--- a/src/styles.ts
+++ b/src/styles.ts
@@ -72,6 +72,7 @@ export interface ReactDiffViewerStylesOverride {
 	wordAdded?: Interpolation;
 	wordRemoved?: Interpolation;
 	codeFoldGutter?: Interpolation;
+	codeFold?: Interpolation;
 	emptyLine?: Interpolation;
 	content?: Interpolation;
 	titleBlock?: Interpolation;