diff --git a/modules/core/www/frontpage_config.php b/modules/core/www/frontpage_config.php
index d1c4480dc94c4c7d5b0ba5263bd86db2bdab03a3..7ee0c91503b73fee3568dd586ff9e5d8357082ae 100644
--- a/modules/core/www/frontpage_config.php
+++ b/modules/core/www/frontpage_config.php
@@ -53,8 +53,8 @@ $allLinks = [
     'federation' => &$links_federation,
 ];
 \SimpleSAML\Module::callHooks('frontpage', $allLinks);
-\SimpleSAML\Logger::debug('The "frontpage" hook has been deprecated for the configuration page. Implement the '.'
-    "configpage" hook instead.');
+\SimpleSAML\Logger::debug('The "frontpage" hook has been deprecated for the configuration page. Implement the '.
+    '"configpage" hook instead.');
 
 // Check for updates. Store the remote result in the session so we
 // don't need to fetch it on every access to this page.