diff --git a/modules/feature/workspaces/autoload/workspaces.el b/modules/feature/workspaces/autoload/workspaces.el
index 2fc263912..3766f02c5 100644
--- a/modules/feature/workspaces/autoload/workspaces.el
+++ b/modules/feature/workspaces/autoload/workspaces.el
@@ -501,7 +501,8 @@ created."
   "Kill leftover buffers that are unassociated with any perspective."
   (when persp-mode
     (cl-loop for buf in (buffer-list)
-             unless (persp--buffer-in-persps buf)
+             unless (or (persp--buffer-in-persps buf)
+                        (get-buffer-window buf))
              if (kill-buffer buf)
              sum 1)))