diff --git a/extensions/configuration-editing/src/extension.ts b/extensions/configuration-editing/src/extension.ts
index 2cf2febeb45..ee653a7d17f 100644
--- a/extensions/configuration-editing/src/extension.ts
+++ b/extensions/configuration-editing/src/extension.ts
@@ -31,7 +31,7 @@ export function activate(context: vscode.ExtensionContext): void {
 	context.subscriptions.push(registerVariableCompletions('**/launch.json'));
 
 	// task.json variable suggestions
-	context.subscriptions.push(registerVariableCompletions('**/task.json'));
+	context.subscriptions.push(registerVariableCompletions('**/tasks.json'));
 
 	// launch.json decorations
 	context.subscriptions.push(vscode.window.onDidChangeActiveTextEditor(editor => updateLaunchJsonDecorations(editor), null, context.subscriptions));