Dbref attributes are of type string

[vamsas.git] / schemas / vamsas.xsd

diff --git a/schemas/vamsas.xsd b/schemas/vamsas.xsd
index de83645..bbf2caf 100644 (file)
--- a/schemas/vamsas.xsd
+++ b/schemas/vamsas.xsd
@@ -56,9 +56,9 @@
                                                                <xs:sequence>
                                                                        <xs:element name="dbRef" minOccurs="0" maxOccurs="unbounded">
                                                                                <xs:complexType>
-                                                                                       <xs:attribute name="source"/>
-                                                                                       <xs:attribute name="version"/>
-                                                                                       <xs:attribute name="accessionId"/>
+                                                                                       <xs:attribute name="source" type="xs:string"/>
+                                                                                       <xs:attribute name="version" type="xs:string"/>
+                                                                                       <xs:attribute name="accessionId" type="xs:string"/>
                                                                                        <xs:attribute name="id" type="xs:ID" use="optional"/>
                                                                                </xs:complexType>
                                                                        </xs:element>