diff --git a/app/__init__.py b/app/__init__.py
index 8b92019d4..c2c557a8a 100644
--- a/app/__init__.py
+++ b/app/__init__.py
@@ -75,15 +75,16 @@ def init_csrf(application):
 
 
 def init_app(app, config_overrides):
-    for key, value in app.config.items():
-        if key in os.environ:
-            app.config[key] = convert_to_boolean(os.environ[key])
 
     if config_overrides:
         for key in app.config.keys():
             if key in config_overrides:
                     app.config[key] = config_overrides[key]
 
+    for key, value in app.config.items():
+        if key in os.environ:
+            app.config[key] = convert_to_boolean(os.environ[key])
+
     @app.context_processor
     def inject_global_template_variables():
         return {'asset_path': '/static/'}