diff --git a/src/globals.h b/src/globals.h
index d831db9..b3310b3 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -387,10 +387,12 @@
  * which one is preferred, au_new_curbuf is set to it */
 EXTERN buf_T	*au_new_curbuf INIT(= NULL);
 
-/* When deleting the buffer and autocmd_busy is TRUE, do not free the buffer
- * but link it in the list starting with au_pending_free_buf, using b_next.
- * Free the buffer when autocmd_busy is set to FALSE. */
+/* When deleting a buffer/window and autocmd_busy is TRUE, do not free the
+ * buffer/window. but link it in the list starting with
+ * au_pending_free_buf/ap_pending_free_win, using b_next/w_next.
+ * Free the buffer/window when autocmd_busy is being set to FALSE. */
 EXTERN buf_T	*au_pending_free_buf INIT(= NULL);
+EXTERN win_T	*au_pending_free_win INIT(= NULL);
 #endif
 
 #ifdef FEAT_MOUSE