diff --git a/server-ce/config/custom-environment-variables.json b/server-ce/config/custom-environment-variables.json
index 450e92fed9..f65f74ae2b 100644
--- a/server-ce/config/custom-environment-variables.json
+++ b/server-ce/config/custom-environment-variables.json
@@ -45,5 +45,17 @@
   "clusterWorkers": "CLUSTER_WORKERS",
   "maxFileUploadSize": "MAX_FILE_UPLOAD_SIZE",
   "httpsOnly": "HTTPS_ONLY",
-  "httpRequestTimeout": "OVERLEAF_HISTORY_V1_HTTP_REQUEST_TIMEOUT"
+  "httpRequestTimeout": "OVERLEAF_HISTORY_V1_HTTP_REQUEST_TIMEOUT",
+  "redis": {
+    "history": {
+      "host": "OVERLEAF_REDIS_HOST",
+      "password": "OVERLEAF_REDIS_PASS",
+      "port": "OVERLEAF_REDIS_PORT"
+    },
+    "lock": {
+      "host": "OVERLEAF_REDIS_HOST",
+      "password": "OVERLEAF_REDIS_PASS",
+      "port": "OVERLEAF_REDIS_PORT"
+    }
+  }
 }