diff --git a/core/modules/filter/src/Tests/FilterSecurityTest.php b/core/modules/filter/src/Tests/FilterSecurityTest.php
index 80bfc70..918c91f 100644
--- a/core/modules/filter/src/Tests/FilterSecurityTest.php
+++ b/core/modules/filter/src/Tests/FilterSecurityTest.php
@@ -75,7 +75,10 @@ function testDisableFilterModule() {
     $this->assertText('Filter: Testing filter', 'Testing filter output found.');
 
     // Disable the text format entirely.
-    $this->drupalPostForm('admin/config/content/formats/manage/' . $format_id . '/disable', array(), t('Disable'));
+    $this->drupalGet('admin/config/content/formats');
+    $this->clickLink('Disable', 2);
+    $this->drupalPostForm(NULL, [], 'Disable');
+    $this->assertRaw(t('Disabled text format %format.', array('%format' => 'Test format')));
 
     // Verify that the content is empty, because the text format does not exist.
     $this->drupalGet('node/' . $node->id());