diff --git a/README.md b/README.md
index 3af2366..69a136f 100644
--- a/README.md
+++ b/README.md
@@ -55,11 +55,11 @@ response.write_json(output)
 
 ## Flask server
 
-To serve XRPC methods in a [Flask](https://flask.palletsprojects.com/) web app, first instantiate a [`Server`](https://lexrpc.readthedocs.io/en/latest/source/lexrpc.html#lexrpc.server.Server) and register method handlers as described above. Then, attach the server to your Flask app with [`init_flask`](https://lexrpc.readthedocs.io/en/latest/source/lexrpc.html#lexrpc.flask_server.init_flask).
+To serve XRPC methods in a [Flask](https://flask.palletsprojects.com/) web app, first install the lexrpc package with the `flask` extra, eg `pip install lexrpc[flask]`. Then, instantiate a [`Server`](https://lexrpc.readthedocs.io/en/latest/source/lexrpc.html#lexrpc.server.Server) and register method handlers as described above. Finally, attach the server to your Flask app with [`flask_server.init_flask`](https://lexrpc.readthedocs.io/en/latest/source/lexrpc.html#lexrpc.flask_server.init_flask).
 
 ```py
 from flask import Flask
-from lexrpc import init_flask
+from lexrpc.flask_server import init_flask
 
 # instantiate a Server like above
 server = ...
diff --git a/lexrpc/__init__.py b/lexrpc/__init__.py
index 107f5a8..49da087 100644
--- a/lexrpc/__init__.py
+++ b/lexrpc/__init__.py
@@ -1,3 +1,2 @@
 from .client import Client
-from .flask_server import init_flask
 from .server import Server