1 files changed, 1 insertions, 1 deletions

diff --git a/src/dispnew.c b/src/dispnew.c
index dddee0eef8d..00590605af2 100644
--- a/src/dispnew.c
+++ b/src/dispnew.c
@@ -3162,7 +3162,7 @@ direct_output_for_insert (g)
      position.  */
   clear_glyph_row (&scratch_glyph_row);
   SET_TEXT_POS (pos, PT, PT_BYTE);
-  DEC_TEXT_POS (pos);
+  DEC_TEXT_POS (pos, !NILP (current_buffer->enable_multibyte_characters));
   init_iterator (&it, w, CHARPOS (pos), BYTEPOS (pos), &scratch_glyph_row,
                  DEFAULT_FACE_ID);