diff --git a/docs/user-documentation/general-admin-users/custom-database-queries.md b/docs/user-documentation/general-admin-users/custom-database-queries.md
index 660c1cad093c0543322a02441675eae72ac44606..6e08a93d31be071ea3617594cbebd64ca1db5a30 100644
--- a/docs/user-documentation/general-admin-users/custom-database-queries.md
+++ b/docs/user-documentation/general-admin-users/custom-database-queries.md
@@ -4,6 +4,10 @@ Custom Database Queries
 Introduction
 ------------
 
+```{warning}
+blablabla
+```
+
 openBIS application server can be configured to query any relational
 database server via SQL. There are three ways to use this feature in
 openBIS Web application: