1 files changed, 3 insertions, 10 deletions

diff --git a/src/xdisp.c b/src/xdisp.c
index 8196d1236ba..7b6a3f3694a 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -17467,16 +17467,9 @@ redisplay_internal (void)
                 continue;
 
               /* Remember tty root frames which we've seen.  */
-              if (!FRAME_PARENT_FRAME (f))
-                {
-                  Lisp_Object found;
-                  for (found = tty_root_frames;
-                       CONSP (found) && !EQ (XCAR (found), frame);
-                       found = XCDR (found))
-                    ;
-                  if (!CONSP (found))
-                    tty_root_frames = Fcons (frame, tty_root_frames);
-                }
+              if (!FRAME_PARENT_FRAME (f)
+                  && NILP (assq_no_quit (frame, tty_root_frames)))
+                tty_root_frames = Fcons (frame, tty_root_frames);
             }
 
         retry_frame: