diff --git a/src/quickpicks/gitQuickPickItems.ts b/src/quickpicks/gitQuickPickItems.ts
index 418e6b5..e5a125c 100644
--- a/src/quickpicks/gitQuickPickItems.ts
+++ b/src/quickpicks/gitQuickPickItems.ts
@@ -18,10 +18,6 @@ import { CommandQuickPickItem, QuickPickItemOfT } from './quickPicksItems';
 import { Dates, Strings } from '../system';
 
 export class GitCommandQuickPickItem extends CommandQuickPickItem<[GitCommandsCommandArgs]> {
-	label!: string;
-	description?: string;
-	detail?: string | undefined;
-
 	constructor(label: string, args: GitCommandsCommandArgs);
 	constructor(item: QuickPickItem, args: GitCommandsCommandArgs);
 	constructor(labelOrItem: string | QuickPickItem, args: GitCommandsCommandArgs) {
diff --git a/tsconfig.json b/tsconfig.json
index 5b2a2c5..7d89fee 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -17,7 +17,8 @@
 		"skipLibCheck": true,
 		"sourceMap": true,
 		"strict": true,
-		"target": "es2019"
+		"target": "es2019",
+		"useDefineForClassFields": true
 	},
 	"exclude": ["node_modules", "test", "src/webviews/apps"]
 }