diff --git a/tests/php/LabelTreeTest.php b/tests/php/LabelTreeTest.php
index 976f1907d..c0c3cdb59 100644
--- a/tests/php/LabelTreeTest.php
+++ b/tests/php/LabelTreeTest.php
@@ -242,7 +242,7 @@ public function testScopeAccessibleBy()
         $project = ProjectTest::create(['creator_id' => $user->id]);
         $project->labelTrees()->attach($tree3);
 
-        $ids = LabelTree::accessibleBy($user)->pluck('id')->toArray();
+        $ids = LabelTree::accessibleBy($user)->orderBy('id')->pluck('id')->toArray();
         $this->assertEquals([$tree->id, $tree2->id, $tree3->id], $ids);
     }