diff --git a/workflows/org-custom.el b/workflows/org-custom.el
index d7c4eff..0d1b1fc 100644
--- a/workflows/org-custom.el
+++ b/workflows/org-custom.el
@@ -75,11 +75,13 @@
       )
 
 (defun theurgy-refresh-org-files ()
-  "Alternative to revert-all-org-buffers, which is a bit more intelligent."
+  "Revert all agenda file buffers in the background."
   (interactive)
   (dolist (f org-agenda-files)
-    (with-current-buffer (find-file-noselect f t)
-      (revert-buffer t t))))
+    (let ((buf (find-buffer-visiting f)))
+      (when buf
+        (with-current-buffer buf
+          (revert-buffer :ignore-auto :noconfirm))))))
 
 (theurgy-refresh-org-files)
 
@@ -106,7 +108,7 @@
 
 ;; Side tree
 (defun conditional-side-tree ()
-  (when (not (string-match-p "\\*capture\\*\\|CAPTURE-\\|scratch\\*" (buffer-name)))
+  (when (not (string-match-p "\\*capture\\*\\|CAPTURE-\\|scratch\\*\\|\\[Preview\\]" (buffer-name)))
     (org-side-tree)))
 
 (use-package org-side-tree