diff --git a/src/ex_cmds.c b/src/ex_cmds.c
index f58bad7..36d7bd1 100644
--- a/src/ex_cmds.c
+++ b/src/ex_cmds.c
@@ -4372,7 +4372,7 @@
     if (eap->cmdidx != CMD_append)
 	--lnum;
 
-    /* when the buffer is empty append to line 0 and delete the dummy line */
+    /* when the buffer is empty need to delete the dummy line */
     if (empty && lnum == 1)
 	lnum = 0;
 
@@ -4456,7 +4456,7 @@
 
 	did_undo = TRUE;
 	ml_append(lnum, theline, (colnr_T)0, FALSE);
-	appended_lines_mark(lnum, 1L);
+	appended_lines_mark(lnum + (empty ? 1 : 0), 1L);
 
 	vim_free(theline);
 	++lnum;