diff --git a/anki/template/template.py b/anki/template/template.py
index d2f055c61..33bfd6ea8 100644
--- a/anki/template/template.py
+++ b/anki/template/template.py
@@ -191,6 +191,7 @@ class Template(object):
                 txt = self.clozeText(txt, extra, mod[1]) if txt and extra else ""
             else:
                 # hook-based field modifier
+                mod, extra = re.search("^(.*?)(?:\((.*)\))?$", mod).groups()
                 txt = runFilter('fmod_' + mod, txt or '', extra, context,
                                 tag, tag_name);
                 if txt is None:
diff --git a/aqt/editor.py b/aqt/editor.py
index ce76ebe3f..755bfbd7e 100644
--- a/aqt/editor.py
+++ b/aqt/editor.py
@@ -690,7 +690,7 @@ class Editor(object):
 
     def onCloze(self):
         # check that the model is set up for cloze deletion
-        if '{{cloze:' not in self.note.model()['tmpls'][0]['qfmt']:
+        if not re.search('{{(.*:)*cloze:',self.note.model()['tmpls'][0]['qfmt']):
             if self.addMode:
                 tooltip(_("Warning, cloze deletions will not work until "
                 "you switch the type at the top to Cloze."))