diff -urNp old/src/screen.c new/src/screen.c
--- old/src/screen.c	2017-10-04 09:49:28.274367045 +0200
+++ new/src/screen.c	2017-10-04 09:50:40.154585607 +0200
@@ -2278,8 +2278,8 @@ int padlen;
 	  while (i-- > 0)
 	    *pn-- = ' ';
 	  numpad--;
-	  if (r && p - buf == winmsg_rendpos[r - 1])
-	    winmsg_rendpos[--r] = pn - buf;
+	  if (r && p - buf + 1 == winmsg_rendpos[r - 1])
+	    winmsg_rendpos[--r] = pn - buf + 1;
 	}
     }
   return pn2;