diff --git a/bin/addons/base/rng/view.rng b/bin/addons/base/rng/view.rng
index 3a9c8f92369..c49548c9330 100644
--- a/bin/addons/base/rng/view.rng
+++ b/bin/addons/base/rng/view.rng
@@ -151,7 +151,7 @@
             </rng:zeroOrMore>
         </rng:element>
     </rng:define>
-    
+
     <rng:define name="vpaned">
         <rng:element name="vpaned">
             <rng:optional><rng:attribute name="position"/></rng:optional>
@@ -309,6 +309,7 @@
             <rng:optional><rng:attribute name="operator"/></rng:optional>
             <rng:optional><rng:attribute name="colspan"/></rng:optional>
             <rng:optional><rng:attribute name="nolabel"/></rng:optional>
+            <rng:optional><rng:attribute name="default"/></rng:optional>
             <rng:optional><rng:attribute name="default_get"/></rng:optional>
             <rng:optional><rng:attribute name="required"/></rng:optional>
             <rng:optional><rng:attribute name="readonly"/></rng:optional>
@@ -329,7 +330,7 @@
             <rng:optional><rng:attribute name="height"/></rng:optional>
             <rng:optional><rng:attribute name="rowspan"/></rng:optional>
             <rng:optional><rng:attribute name="align"/></rng:optional>
-            <rng:optional><rng:attribute name="selection"/></rng:optional>            
+            <rng:optional><rng:attribute name="selection"/></rng:optional>
             <rng:zeroOrMore>
                 <rng:choice>
                     <rng:ref name="attribute" />
@@ -432,7 +433,7 @@
             <rng:optional><rng:attribute name="position"/></rng:optional>
             <rng:optional><rng:attribute name="context"/></rng:optional>
             <rng:optional><rng:attribute name="confirm"/></rng:optional>
-            <rng:optional><rng:attribute name="help"/></rng:optional>            
+            <rng:optional><rng:attribute name="help"/></rng:optional>
             <rng:zeroOrMore>
                 <rng:choice>
                     <rng:ref name="attribute" />
@@ -471,9 +472,9 @@
             <rng:optional><rng:attribute name="readonly"/></rng:optional>
             <rng:optional><rng:attribute name="position"/></rng:optional>
             <rng:optional><rng:attribute name="context"/></rng:optional>
-            <rng:optional><rng:attribute name="help"/></rng:optional>            
+            <rng:optional><rng:attribute name="help"/></rng:optional>
             <rng:optional><rng:attribute name="domain"/></rng:optional>
-            <rng:optional><rng:attribute name="default"/></rng:optional>            
+            <rng:optional><rng:attribute name="default"/></rng:optional>
             <rng:zeroOrMore>
                 <rng:choice>
                     <rng:ref name="form" />
@@ -504,11 +505,11 @@
             <rng:optional><rng:attribute name="goto" /></rng:optional>
         </rng:element>
     </rng:define>
-	
+
     <rng:start>
         <rng:choice>
             <rng:ref name="form" />
-            <rng:ref name="search" />            
+            <rng:ref name="search" />
             <rng:ref name="group" />
             <rng:ref name="field" />
             <rng:ref name="tree" />