diff --git a/dicos/25_bdd_server.xml b/dicos/25_bdd_server.xml
index 9376818..d82d563 100644
--- a/dicos/25_bdd_server.xml
+++ b/dicos/25_bdd_server.xml
@@ -145,6 +145,10 @@
         </separators>
     </variables>
     <constraints>
+	<check name="valid_ipnetmask" target="maskMariaDBLimit" level="warning">
+            <param type='eole'>ipMariaDBLimit</param>
+        </check>	
+
         <check name='valid_enum' target='ifDBCluster'>
             <param>['eth0', 'eth1', 'eth2', 'eth3', 'eth4']</param>
         </check>