diff --git a/nvchecker/source/github.py b/nvchecker/source/github.py
index eb53639..828283b 100644
--- a/nvchecker/source/github.py
+++ b/nvchecker/source/github.py
@@ -73,6 +73,9 @@ def get_token(kwargs):
   if token:
     return token
 
+  if 'keyman' not in kwargs:
+    return None
+
   token = kwargs['keyman'].get_key('github')
   return token