diff --git a/src/nvim/buffer.c b/src/nvim/buffer.c
index 53cc7815d3..c22d9356f4 100644
--- a/src/nvim/buffer.c
+++ b/src/nvim/buffer.c
@@ -623,7 +623,7 @@ bool close_buffer(win_T *win, buf_T *buf, int action, bool abort_if_last, bool i
     }
     buf->b_locked--;
     buf->b_locked_split--;
-    if (abort_if_last && win != NULL && one_window(win, NULL)) {
+    if (abort_if_last && one_window(win, NULL)) {
       // Autocommands made this the only window.
       emsg(_(e_auabort));
       return false;
@@ -642,7 +642,7 @@ bool close_buffer(win_T *win, buf_T *buf, int action, bool abort_if_last, bool i
       }
       buf->b_locked--;
       buf->b_locked_split--;
-      if (abort_if_last && win != NULL && one_window(win, NULL)) {
+      if (abort_if_last && one_window(win, NULL)) {
         // Autocommands made this the only window.
         emsg(_(e_auabort));
         return false;