diff --git a/flask_environments.py b/flask_environments.py
index 52fde3a..ac4bc6e 100644
--- a/flask_environments.py
+++ b/flask_environments.py
@@ -27,7 +27,7 @@ def __init__(self, app=None, var_name=None, default_env=None):
             self.init_app(app)
 
     def init_app(self, app):
-        app.config['ENVIORNMENT'] = self.env
+        app.config['ENVIRONMENT'] = self.env
 
         if app.extensions is None:
             app.extensions = {}