diff --git a/seafile_sync/Dockerfile b/seafile_sync/Dockerfile
index 26e38c1..4d256ee 100644
--- a/seafile_sync/Dockerfile
+++ b/seafile_sync/Dockerfile
@@ -10,10 +10,9 @@ FROM flowgunso/seafile-client:latest
 
 #RUN mkdir /library \
 #    && ln -s /config /library
- #   SEAF_SERVER_URL="SERVER_URL" \
-ENV \
-    SEAF_SERVER_URL="https://opslag.lermer.nl" \
 
+ENV \
+    SEAF_SERVER_URL="SERVER_URL" \
     SEAF_USERNAME="USERNAME" \
     SEAF_PASSWORD="PASSWORD" \
     SEAF_LIBRARY_UUID="LIBRARY_UUID" \