diff --git a/projects/packages/masterbar/tests/php/test-class-atomic-admin-menu.php b/projects/packages/masterbar/tests/php/test-class-atomic-admin-menu.php
index 38e99769a1b84..a685d3f0b0f06 100644
--- a/projects/packages/masterbar/tests/php/test-class-atomic-admin-menu.php
+++ b/projects/packages/masterbar/tests/php/test-class-atomic-admin-menu.php
@@ -264,19 +264,6 @@ public function test_add_upgrades_menu() {
 		}
 	}
 
-	/**
-	 * Tests add_my_mailboxes_menu
-	 *
-	 * @covers Automattic\Jetpack\Masterbar\Atomic_Admin_Menu::add_my_mailboxes_menu
-	 */
-	public function test_add_my_mailboxes_menu() {
-		global $menu;
-
-		static::$admin_menu->add_my_mailboxes_menu();
-
-		$this->assertSame( 'https://wordpress.com/mailboxes/' . static::$domain, $menu['4.64424'][2] );
-	}
-
 	/**
 	 * Tests add_options_menu
 	 *