diff --git a/entrypoint.sh b/entrypoint.sh
index 6a61620..a91e517 100644
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -3,6 +3,6 @@
 /usr/bin/seaf-cli init -d /.seafile
 while [ ! -f ~/.ccnet/seafile.ini ]; do sleep 1; done
 /usr/bin/seaf-cli start
-while [ ! -f /.seafile/seafile-data/seafile.sock ]; do sleep 1; done
+while [ ! -S /.seafile/seafile-data/seafile.sock ]; do sleep 1; done
 /usr/bin/seaf-cli sync -u $USERNAME -p $PASSWORD -s $SERVER -l $LIBRARY_ID -d /volume
 /usr/bin/supervisord -u $UNAME -c /supervisord.conf
\ No newline at end of file