diff --git a/src/_h5ai/server/php/inc/page.php.jade b/src/_h5ai/server/php/inc/page.php.jade
index 8af65591..4b9333d9 100644
--- a/src/_h5ai/server/php/inc/page.php.jade
+++ b/src/_h5ai/server/php/inc/page.php.jade
@@ -1,6 +1,6 @@
 
-- var app_href = "<?= APP_HREF ?>"
-- var fallback = "<?= FALLBACK ?>"
+- var app_href = "<?php echo APP_HREF; ?>"
+- var fallback = "<?php echo FALLBACK; ?>"
 
 doctype 5
 //if lt IE 10