diff --git a/phpBB/adm/style/acp_prune_users.html b/phpBB/adm/style/acp_prune_users.html
index 8a93448fae..b8c271355b 100644
--- a/phpBB/adm/style/acp_prune_users.html
+++ b/phpBB/adm/style/acp_prune_users.html
@@ -19,7 +19,7 @@
 	<dd><input type="text" id="email" name="email" /></dd>
 </dl>
 <dl>
-	<dt><label for="joined">{L_JOINED}{L_COLON}</label><br /><span>{L_JOINED_EXPLAIN}</span></dt>
+	<dt><label for="joined_after">{L_JOINED}{L_COLON}</label><br /><span>{L_JOINED_EXPLAIN}</span></dt>
 	<dd>
 		<strong>{L_AFTER}</strong> <input type="text" id="joined_after" name="joined_after" />
 		<br /> <br /> <strong>{L_BEFORE}</strong> <input type="text" id="joined_before" name="joined_before" />