diff --git a/src/form/RoleSelector.js b/src/form/RoleSelector.js
index 142cdfd..d82c980 100644
--- a/src/form/RoleSelector.js
+++ b/src/form/RoleSelector.js
@@ -18,17 +18,21 @@ Ext.define('Proxmox.form.RoleSelector', {
     displayField: 'roleid',
 
     listConfig: {
+	width: 500,
 	columns: [
 	    {
 		header: gettext('Role'),
 		sortable: true,
 		dataIndex: 'roleid',
-		flex: 1,
+		flex: 2,
 	    },
 	    {
 		header: gettext('Privileges'),
 		dataIndex: 'privs',
-		flex: 1,
+		cellWrap: true,
+		// join manually here, as ExtJS joins without whitespace which breaks cellWrap
+		renderer: v => v.join(', '),
+		flex: 5,
 	    },
 	],
     },