diff --git a/src/wuttaweb/cli/webapp.py b/src/wuttaweb/cli/webapp.py
index 5f17052..d81ae58 100644
--- a/src/wuttaweb/cli/webapp.py
+++ b/src/wuttaweb/cli/webapp.py
@@ -74,6 +74,7 @@ def webapp(
             'reload_dirs': config.get_list(f'{config.appname}.web.app.reload_dirs'),
             'factory': config.get_bool(f'{config.appname}.web.app.factory', default=False),
             'interface': config.get(f'{config.appname}.web.app.interface', default='auto'),
+            'root_path': config.get(f'{config.appname}.web.app.root_path'),
         }
 
         # also must inject our config files to env, since there is no
diff --git a/tests/cli/test_webapp.py b/tests/cli/test_webapp.py
index 1e23752..eaa1f6a 100644
--- a/tests/cli/test_webapp.py
+++ b/tests/cli/test_webapp.py
@@ -88,7 +88,8 @@ app.spec = wuttaweb.app:make_wsgi_app
                                                 reload=False,
                                                 reload_dirs=None,
                                                 factory=False,
-                                                interface='auto')
+                                                interface='auto',
+                                                root_path=None)
 
         # with reload
         uvicorn.run.reset_mock()
@@ -101,4 +102,5 @@ app.spec = wuttaweb.app:make_wsgi_app
                                                 reload=True,
                                                 reload_dirs=None,
                                                 factory=False,
-                                                interface='auto')
+                                                interface='auto',
+                                                root_path=None)