1 files changed, 4 insertions, 1 deletions

diff --git a/src/dispnew.c b/src/dispnew.c
index 04532d486dd..337e3c9264a 100644
--- a/src/dispnew.c
+++ b/src/dispnew.c
@@ -3584,7 +3584,10 @@ direct_output_for_insert (g)
     {
       rif->update_window_begin_hook (w);
       
-      if (glyphs == end - n)
+      if (glyphs == end - n
+          /* In front of a space added by append_space.  */
+          || (glyphs == end - n - 1
+              && (end - n)->charpos <= 0))
         rif->write_glyphs (glyphs, n);
       else
         rif->insert_glyphs (glyphs, n);