1 files changed, 5 insertions, 1 deletions

diff --git a/src/xdisp.c b/src/xdisp.c
index 0fc387b8ffb..0e18c5adbc6 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -2957,7 +2957,11 @@ init_iterator (struct it *it, struct window *w,
       else if (base_face_id == TAB_LINE_FACE_ID)
         row = MATRIX_TAB_LINE_ROW (w->desired_matrix);
       else if (base_face_id == HEADER_LINE_FACE_ID)
-        row = MATRIX_HEADER_LINE_ROW (w->desired_matrix);
+        {
+          /* Header line row depends on whether tab line is enabled.  */
+          w->desired_matrix->tab_line_p = window_wants_tab_line (w);
+          row = MATRIX_HEADER_LINE_ROW (w->desired_matrix);
+        }
     }
 
   /* Clear IT, and set it->object and other IT's Lisp objects to Qnil.