diff --git a/schema/projects/vaultpass.xsd b/schema/projects/vaultpass.xsd
index cd84c10..d2f3a9e 100644
--- a/schema/projects/vaultpass.xsd
+++ b/schema/projects/vaultpass.xsd
@@ -13,7 +13,7 @@
     <xs:element name="vaultpass">
         <xs:complexType>
             <xs:all>
-                <xs:element name="server" minOccurs="0" maxOccurs="1">
+                <xs:element name="server" minOccurs="1" maxOccurs="1">
                     <xs:complexType>
                         <xs:all>
                             <xs:element name="uri" type="t_std_uri" minOccurs="0" maxOccurs="1"