diff --git a/src/fileio.c b/src/fileio.c
index 6d92c07..e0ae301 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -6071,7 +6071,7 @@
 
     if (!stuff_empty() || global_busy || !typebuf_typed()
 #ifdef FEAT_AUTOCMD
-			|| autocmd_busy
+			|| autocmd_busy || curbuf_lock > 0
 #endif
 					)
 	need_check_timestamps = TRUE;		/* check later */