diff --git a/config/clusters/m2lines/common.values.yaml b/config/clusters/m2lines/common.values.yaml
index 046907a6a7..5aeac97390 100644
--- a/config/clusters/m2lines/common.values.yaml
+++ b/config/clusters/m2lines/common.values.yaml
@@ -53,7 +53,7 @@ basehub:
             - jbusecke
     singleuser:
       extraFiles:
-        jupyter_notebook_config.json:
+        jupyter_server_config.json:
           data:
             MappingKernelManager:
               # Cull idle kernels after 24h (24 * 60 * 60), to see if that
diff --git a/docs/sre-guide/manage-k8s/culling.md b/docs/sre-guide/manage-k8s/culling.md
index 545430395b..8d5c8c0624 100644
--- a/docs/sre-guide/manage-k8s/culling.md
+++ b/docs/sre-guide/manage-k8s/culling.md
@@ -25,7 +25,7 @@ More culling options and information about them can be found in the [idle-culler
 
 ## Kernel culling configuration
 
-The kernel culling options are configured through the `jupyter_notebook_config.json` file, located at `/usr/local/etc/jupyter/jupyter_notebook_config.json` in the user pod. This file is injected into the pod’s container on startup, by defining its location and content under [`singleuser.extraFiles`](https://zero-to-jupyterhub.readthedocs.io/en/latest/resources/reference.html#singleuser-extrafiles) dictionary.
+The kernel culling options are configured through the `jupyter_server_config.json` file, located at `/usr/local/etc/jupyter/jupyter_server_config.json` in the user pod. This file is injected into the pod’s container on startup, by defining its location and content under [`singleuser.extraFiles`](https://zero-to-jupyterhub.readthedocs.io/en/latest/resources/reference.html#singleuser-extrafiles) dictionary.
 
 You can modify the current culling options values, under `singleuser.extraFiles.data`, in the `helm-charts/basehub/values.yaml` file.
 
@@ -34,8 +34,8 @@ Example:
 ```yaml
 singleuser:
   extraFiles:
-    jupyter_notebook_config.json:
-      mountPath: /usr/local/etc/jupyter/jupyter_notebook_config.json
+    jupyter_server_config.json:
+      mountPath: /usr/local/etc/jupyter/jupyter_server_config.json
       data:
         MappingKernelManager:
           # shutdown kernels after no activity