1 files changed, 2 insertions, 2 deletions
diff --git a/source/features/extend-diff-expander.tsx b/source/features/extend-diff-expander.tsx
index 72333b82..493a7335 100644
--- a/source/features/extend-diff-expander.tsx
+++ b/source/features/extend-diff-expander.tsx
@@ -2,14 +2,14 @@ import select from 'select-dom';
 import delegate, {DelegateEvent} from 'delegate-it';
 import features from '../libs/features';
 
-function expandDiff(event: DelegateEvent) {
+function expandDiff(event: DelegateEvent): void {
 	// Skip if the user clicked directly on the icon
 	if (!(event.target as Element).closest('.js-expand')!) {
 		select<HTMLAnchorElement>('.js-expand', event.delegateTarget)!.click();
 	}
 }
 
-function init() {
+function init(): void {
 	delegate('.diff-view', '.js-expandable-line', 'click', expandDiff);
 }