diff --git a/config/xml_schemas/config_batch.xsd b/config/xml_schemas/config_batch.xsd
index efe9331b59a..c35e205f998 100644
--- a/config/xml_schemas/config_batch.xsd
+++ b/config/xml_schemas/config_batch.xsd
@@ -172,7 +172,7 @@
   <xs:element name="queue">
     <xs:complexType>
       <xs:simpleContent>
-        <xs:extension base="xs:NCName">
+        <xs:extension base="xs:string">
           <xs:attribute name="default" type="xs:boolean"/>
           <xs:attribute name="strict" type="xs:boolean"/>
           <xs:attribute name="nodemax" type="xs:integer"/>
diff --git a/config/xml_schemas/env_batch.xsd b/config/xml_schemas/env_batch.xsd
index 5ef13580b2c..f60d78d153a 100644
--- a/config/xml_schemas/env_batch.xsd
+++ b/config/xml_schemas/env_batch.xsd
@@ -5,7 +5,7 @@
 
   <!-- attributes -->
   <xs:attribute name="id" type="xs:NCName"/>
-  <xs:attribute name="default" type="xs:string"/>
+  <xs:attribute name="default" type="xs:NCName"/>
   <xs:attribute name="nodemax" type="xs:integer"/>
   <xs:attribute name="nodemin"  type="xs:integer"/>
   <xs:attribute name="jobmax" type="xs:integer"/>