diff --git a/runtime/ftplugin/python.vim b/runtime/ftplugin/python.vim
index 4834b40..8e6a03f 100644
--- a/runtime/ftplugin/python.vim
+++ b/runtime/ftplugin/python.vim
@@ -14,6 +14,8 @@
 setlocal comments-=:%
 setlocal commentstring=#%s
 
+setlocal omnifunc=pycomplete#Complete
+
 set wildignore+=*.pyc
 
 nnoremap <silent> <buffer> ]] :call <SID>Python_jump('/^\(class\\|def\)')<cr>