diff --git a/python/ycm/completers/all/omni_completer.py b/python/ycm/completers/all/omni_completer.py
index 8d74b7a9..944160c8 100644
--- a/python/ycm/completers/all/omni_completer.py
+++ b/python/ycm/completers/all/omni_completer.py
@@ -106,8 +106,7 @@ class OmniCompleter( Completer ):
 
 
 def _BuildRequestDataSubstitute():
-  data = BuildRequestData( include_buffer_data = False )
-  data[ 'start_column' ] = base.CompletionStartColumn()
-  return data
+  return BuildRequestData( start_column = base.CompletionStartColumn(),
+                           include_buffer_data = False )