diff --git a/xmrnodes/config.example.py b/xmrnodes/config.example.py
index 7669507..02cb0ec 100644
--- a/xmrnodes/config.example.py
+++ b/xmrnodes/config.example.py
@@ -1,4 +1,4 @@
 import os
 
-SECRET_KEY = os.environ('SECRET_KEY', 'xxxx')
-DATA_DIR = os.environ('DATA_DIR', './data')
+SECRET_KEY = os.environ.get('SECRET_KEY', 'xxxx')
+DATA_DIR = os.environ.get('DATA_DIR', './data')