diff --git a/jupyterhub_config.py b/jupyterhub_config.py
index 71a7c2d9318f35d9c4615d2126c02f8af6e1692d..50e662fe83db1764f25b6524325356d310634a1c 100644
--- a/jupyterhub_config.py
+++ b/jupyterhub_config.py
@@ -1140,7 +1140,7 @@ c.DockerSpawner.notebook_dir = notebook_dir
 # notebook directory in the container
 c.DockerSpawner.volumes = {"/cache/jupyterhub/users/{username}": notebook_dir}
 
-c.SwarmSpawner.environment = {
+c.DockerSpawner.environment = {
     'NB_UID': 8963,
     'NB_GID': 8963,
 }