diff --git a/splunklib/client.py b/splunklib/client.py
index 0e5b287ba..7f40254b5 100644
--- a/splunklib/client.py
+++ b/splunklib/client.py
@@ -2144,7 +2144,7 @@ def update(self, **kwargs):
 
             if 'restrictToHost' in kwargs:
                 raise IllegalOperationException("Cannot set restrictToHost on an existing input with the SDK.")
-            elif 'restrictToHost' in self._state.content:
+            elif 'restrictToHost' in self._state.content and self.kind != 'udp':
                 to_update['restrictToHost'] = self._state.content['restrictToHost']
 
             # Do the actual update operation.