diff --git a/duplicati/docker-compose.yml b/duplicati/docker-compose.yml
index 21ce426..6b47245 100644
--- a/duplicati/docker-compose.yml
+++ b/duplicati/docker-compose.yml
@@ -14,5 +14,5 @@ services:
             - ${DATA_DIR}:/source/data:ro # IMPORTANT: Map your data here!
             #- /path/to/host/data2:/source/data2:ro # More data to back up
         ports:
-            - "${HOST_PORT}:8200" # Port for accessing the web interface
+            - "${HOST_PORT:-8200}:8200" # Port for accessing the web interface
         restart: ${RESTART_POLICY:-unless-stopped}
\ No newline at end of file