diff --git a/modules/org.openbravo.client.application/web/org.openbravo.userinterface.smartclient/openbravo/skins/Default/org.openbravo.client.application/ob-form-styles.js b/modules/org.openbravo.client.application/web/org.openbravo.userinterface.smartclient/openbravo/skins/Default/org.openbravo.client.application/ob-form-styles.js
--- a/modules/org.openbravo.client.application/web/org.openbravo.userinterface.smartclient/openbravo/skins/Default/org.openbravo.client.application/ob-form-styles.js
+++ b/modules/org.openbravo.client.application/web/org.openbravo.userinterface.smartclient/openbravo/skins/Default/org.openbravo.client.application/ob-form-styles.js
@@ -421,7 +421,8 @@
   cellStyle: 'OBFormField',
   titleStyle: 'OBFormFieldLabel',
   textBoxStyle: 'OBFormFieldSelectInput',
-  controlStyle: 'OBFormFieldSelectControl'
+  controlStyle: 'OBFormFieldSelectControl',
+  width: 65
 });
 
 isc.RelativeDateItem.changeDefaults('valueFieldDefaults', {