diff --git a/plone/app/discussion/patches.py b/plone/app/discussion/patches.py
index 5df8dff..3b4df60 100644
--- a/plone/app/discussion/patches.py
+++ b/plone/app/discussion/patches.py
@@ -11,36 +11,38 @@ from plone.app.discussion.conversation import ANNOTATION_KEY
 
 # security.declareProtected(ManageZCatalogEntries, 'clearFindAndRebuild')
 def patchedClearFindAndRebuild(self):
-        """Empties catalog, then finds all contentish objects (i.e. objects
-           with an indexObject method), and reindexes them.
-           This may take a long time.
-        """
-        def indexObject(obj, path):
+    """Empties catalog, then finds all contentish objects (i.e. objects
+       with an indexObject method), and reindexes them.
+       This may take a long time.
+    """
+    
+    def indexObject(obj, path):
 
-            if (base_hasattr(obj, 'indexObject') and
-                safe_callable(obj.indexObject)):
+        if (base_hasattr(obj, 'indexObject') and
+            safe_callable(obj.indexObject)):
 
-                try:
-                    obj.indexObject()
+            try:
+                obj.indexObject()
 
-                    annotions = IAnnotations(obj)
-                    catalog = getToolByName(obj, 'portal_catalog', None)
-                    if ANNOTATION_KEY in annotions:
-                        conversation = annotions[ANNOTATION_KEY]
-                        conversation = conversation.__of__(obj)
-                        for comment in conversation.getComments():
-                            try:
-                                comment = comment.__of__(conversation)
-                                if catalog:
-                                    catalog.indexObject(comment)
-                            except StopIteration:
-                                pass
+                annotions = IAnnotations(obj)
+                catalog = getToolByName(obj, 'portal_catalog', None)
+                if ANNOTATION_KEY in annotions:
+                    conversation = annotions[ANNOTATION_KEY]
+                    conversation = conversation.__of__(obj)
+                    for comment in conversation.getComments():
+                        try:
+                            comment = comment.__of__(conversation)
+                            if catalog:
+                                catalog.indexObject(comment)
+                        except StopIteration:
+                            pass
 
-                except TypeError:
-                    # Catalogs have 'indexObject' as well, but they
-                    # take different args, and will fail
-                    pass
+            except TypeError:
+                # Catalogs have 'indexObject' as well, but they
+                # take different args, and will fail
+                pass
 
-        self.manage_catalogClear()
-        portal = aq_parent(aq_inner(self))
-        portal.ZopeFindAndApply(portal, search_sub=True, apply_func=indexObject)
\ No newline at end of file
+    self.manage_catalogClear()
+    portal = aq_parent(aq_inner(self))
+    portal.ZopeFindAndApply(portal, search_sub=True, apply_func=indexObject)
+    
\ No newline at end of file