diff --git a/docs.it4i/storage/cesnet-s3.md b/docs.it4i/storage/cesnet-s3.md
index 438333a1a61eed5de03237c63f2ed18ee387896f..a898f750e9742dd3a859413a4827412d186d05fd 100644
--- a/docs.it4i/storage/cesnet-s3.md
+++ b/docs.it4i/storage/cesnet-s3.md
@@ -1,6 +1,6 @@
 # CESNET S3 Storage
 
-S3 service is a general service suited for most of the use cases. S3 service can be used for elementary data storing, automated backups, or various types of data handling applications. The service is supported by CESNET Storage Department: [e-mail du-support(at)cesnet.cz][email]
+S3 service is a general service suited for most of the use cases. S3 service can be used for elementary data storing, automated backups, or various types of data handling applications. The service is supported by CESNET Storage Department: [du-support(at)cesnet.cz][email]
 
 For more information, see [e-IINFRA CZ S3 Service documentation][a].
 
@@ -51,4 +51,4 @@ IT4I offers two tools for object storage management on Karolina:
 [d]: https://www.s3express.com/kb/item26.htm
 [e]: https://filesender.cesnet.cz/
 
-[email]: mailto: du-support@cesnet.cz
+[email]: mailto:du-support@cesnet.cz