diff --git a/conf/hostname.conf.sample b/conf/hostname.conf.sample
index cb29778..268093c 100644
--- a/conf/hostname.conf.sample
+++ b/conf/hostname.conf.sample
@@ -141,3 +141,13 @@ PSQL_SERVER=
 # -    WOPI_URL="https://office-cl.oopen.de"
 # -
 #WOPI_URL=""
+
+
+# - EO_DocumentServerURL
+# -
+# - URL to connect Eiuro-Office service
+# -
+# - Example:
+# -   EO_DocumentServerURL="https://eo-ds.ndnaht.de"
+# -
+#EO_DocumentServerURL=""