diff --git a/src/vs/workbench/contrib/extensions/browser/extensionEditor.ts b/src/vs/workbench/contrib/extensions/browser/extensionEditor.ts
index ed0b400785a..7b76cfd9f5c 100644
--- a/src/vs/workbench/contrib/extensions/browser/extensionEditor.ts
+++ b/src/vs/workbench/contrib/extensions/browser/extensionEditor.ts
@@ -1707,7 +1707,10 @@ export class ExtensionEditor extends EditorPane {
 
 		const details = $('details', { open: true, ontoggle: onDetailsToggle },
 			$('summary', { tabindex: '0' }, localize('activation events', "Activation Events ({0})", activationEvents.length)),
-			$('ul', undefined, ...activationEvents.map(activationEvent => $('li', undefined, $('code', undefined, activationEvent))))
+			$('ul', undefined,
+				...activationEvents
+					.sort((a, b) => a.localeCompare(b))
+					.map(activationEvent => $('li', undefined, $('code', undefined, activationEvent))))
 		);
 
 		append(container, details);