diff --git a/src/Orchard.Web/Modules/Orchard.Indexing/Settings/EditorEvents.cs b/src/Orchard.Web/Modules/Orchard.Indexing/Settings/EditorEvents.cs
index cb3567cef..9fbf042a3 100644
--- a/src/Orchard.Web/Modules/Orchard.Indexing/Settings/EditorEvents.cs
+++ b/src/Orchard.Web/Modules/Orchard.Indexing/Settings/EditorEvents.cs
@@ -34,7 +34,7 @@ namespace Orchard.Indexing.Settings {
             builder.WithSetting("TypeIndexing.Indexes", model.Indexes);
 
             // create indexing tasks only if settings have changed
-            if (model.Indexes != previous.Indexes) {
+            if (Clean(model.Indexes) != Clean(previous.Indexes)) {
                 
                 // if a an index is added, all existing content items need to be re-indexed
                 CreateIndexingTasks();
@@ -43,6 +43,13 @@ namespace Orchard.Indexing.Settings {
             yield return DefinitionTemplate(model);
         }
 
+        private string Clean(string value) {
+            if (string.IsNullOrEmpty(value))
+                return value;
+
+            return value.Trim(',', ' ');
+        }
+
         /// <summary>
         /// Creates new indexing tasks to update the index document for these content items
         /// </summary>