diff --git a/charts/jupyter-hub-customizations/templates/configmap_values.yaml b/charts/jupyter-hub-customizations/templates/configmap_values.yaml
index 9a15d2a6993bd503f3ba38cfc1fa97bce83d6755..55b8c47a9dccd21b59abb6dfbe28b87b98eae579 100644
--- a/charts/jupyter-hub-customizations/templates/configmap_values.yaml
+++ b/charts/jupyter-hub-customizations/templates/configmap_values.yaml
@@ -143,6 +143,8 @@ data:
             secretKeyRef:
               name: {{ .Values.oauthSecret }}
               key: client_secret
+        - name: BLOCKLIST_PATH
+          value: "/mnt/shared-data/blocklist/blocked_users.json"
       extraVolumeMounts:
         - name: shared-data
           mountPath: /mnt/shared-data