diff --git a/ext/tag_edit/test.php b/ext/tag_edit/test.php
index 7ff277c2..44eb1e2f 100644
--- a/ext/tag_edit/test.php
+++ b/ext/tag_edit/test.php
@@ -30,13 +30,13 @@ class TagEditTest extends ShimmieWebTestCase {
 
 		$this->set_field("tag_edit__source", "example.com");
 		$this->click("Set");
-		$this->click("Source");
+		$this->click("source");
 		$this->assert_title("Example Web Page");
 		$this->back();
 
 		$this->set_field("tag_edit__source", "http://example.com");
 		$this->click("Set");
-		$this->click("Source");
+		$this->click("source");
 		$this->assert_title("Example Web Page");
 		$this->back();