diff --git a/suite/browser/pageinfo/permissions.js b/suite/browser/pageinfo/permissions.js
index bf9953e949..f4a3f51605 100644
--- a/suite/browser/pageinfo/permissions.js
+++ b/suite/browser/pageinfo/permissions.js
@@ -193,8 +193,12 @@ function onCheckboxClick(aPartId)
 function onRadioClick(aPartId)
 {
   var radioGroup = document.getElementById(aPartId + "RadioGroup");
-  var id = radioGroup.selectedItem ? radioGroup.selectedItem.id : "#1";
-  var permission = parseInt(id.split("#")[1]);
+  let permission;
+  if (radioGroup.selectedItem) {
+    permission = parseInt(radioGroup.selectedItem.id.split("#")[1]);
+  } else {
+    permission = SitePermissions.getDefault(aPartId);
+  }
   SitePermissions.setForPrincipal(gPermPrincipal, aPartId, permission);
 }