diff --git a/backend/.env.template b/backend/.env.template
index 449863ef..5229ba97 100644
--- a/backend/.env.template
+++ b/backend/.env.template
@@ -1,6 +1,12 @@
 # SPDX-FileCopyrightText: 2024 German Aerospace Center (DLR)
 # SPDX-License-Identifier: CC0-1.0
 
+# This should point to a folder with the following subfolders:
+# - postgres-data
+# - pgadmin-data
+# - django-data
+VOLUME_DIR=/path/to/where/all/volume/data/should/be/stored
+
 ####################################
 # Django setup                     #
 ####################################