1 files changed, 1 insertions, 1 deletions

diff --git a/lisp/progmodes/python.el b/lisp/progmodes/python.el
index ad69f8779e0..290cdc8120d 100644
--- a/lisp/progmodes/python.el
+++ b/lisp/progmodes/python.el
@@ -3318,7 +3318,7 @@ When a match is found, native completion is disabled."
          python-shell-completion-native-try-output-timeout))
     (python-shell-completion-native-get-completions
      (get-buffer-process (current-buffer))
-     nil "")))
+     nil "_")))
 
 (defun python-shell-completion-native-setup ()
   "Try to setup native completion, return non-nil on success."