diff --git a/files/helpers/wrappers.py b/files/helpers/wrappers.py
index 3f2466108d..1caf45d85f 100644
--- a/files/helpers/wrappers.py
+++ b/files/helpers/wrappers.py
@@ -10,7 +10,7 @@ import time
 
 def calc_users(v):
 	# Some globals we expect aren't available when rendering error pages
-	if not g.agent or not ('session_id' in session):
+	if not g or not g.agent or not session or not ('session_id' in session):
 		return ''
 
 	loggedin = cache.get(f'{SITE}_loggedin') or {}