diff --git a/sleekxmpp/plugins/xep_0122/data_validation.py b/sleekxmpp/plugins/xep_0122/data_validation.py
index 6f6cbe8c..ec2cdfcc 100644
--- a/sleekxmpp/plugins/xep_0122/data_validation.py
+++ b/sleekxmpp/plugins/xep_0122/data_validation.py
@@ -16,4 +16,4 @@ class XEP_0122(BasePlugin):
     stanza = stanza
 
     def plugin_init(self):
-        register_stanza_plugin(FormField, FormValidation, iterable=True)
+        register_stanza_plugin(FormField, FormValidation)