diff --git a/tests/e2e/pageobjects/ide/ProjectTree.ts b/tests/e2e/pageobjects/ide/ProjectTree.ts
index d570f4b4166..69a5e5ac828 100644
--- a/tests/e2e/pageobjects/ide/ProjectTree.ts
+++ b/tests/e2e/pageobjects/ide/ProjectTree.ts
@@ -30,7 +30,7 @@ export class ProjectTree {
     async clickCollapseAllButton() {
         Logger.debug('ProjectTree.clickCollapseAllButton');
 
-        const collapseAllButtonLocator: By = By.css('div.theia-sidepanel-toolbar div.theia-collapse-all-icon');
+        const collapseAllButtonLocator: By = By.id('navigator.collapse.all');
         await this.driverHelper.waitAndClick(collapseAllButtonLocator);
     }