diff --git a/ogn/collect/fetchddb.py b/ogn/collect/fetchddb.py
index 1e3e354..1007d88 100644
--- a/ogn/collect/fetchddb.py
+++ b/ogn/collect/fetchddb.py
@@ -25,7 +25,7 @@ def update_ddb_data():
 
 
 @app.task
-def import_ddb_data(filename='custom.txt'):
+def import_ddb_data(filename='custom_ddb.txt'):
     logger.info("Import ddb data from file.")
 
     devices = get_ddb(filename)
diff --git a/ogn/custom_ddb.txt b/ogn/custom_ddb.txt
new file mode 100644
index 0000000..8e8b56a
--- /dev/null
+++ b/ogn/custom_ddb.txt
@@ -0,0 +1,2 @@
+#DEVICE_TYPE,DEVICE_ID,AIRCRAFT_MODEL,REGISTRATION,CN,TRACKED,IDENTIFIED
+'F','DD0000','YourAircraft','D-1234','CN','Y','Y'
\ No newline at end of file