1 files changed, 2 insertions, 0 deletions

diff --git a/src/window.c b/src/window.c
index 4874b1c7ff6..89f5e312ccb 100644
--- a/src/window.c
+++ b/src/window.c
@@ -6066,6 +6066,8 @@ DEFUN ("change-window-configuration-frame", Fchange_window_configuration_frame,
   Vwindow_list = Qnil;
 
 #undef MAP_WINDOW
+
+  return config;
 }
 
 DEFUN ("buffers-in-window-configuration", Fbuffers_in_window_configuration,