1 files changed, 4 insertions, 2 deletions

diff --git a/lisp/progmodes/etags.el b/lisp/progmodes/etags.el
index 610b225a7da..539e4ae57d5 100644
--- a/lisp/progmodes/etags.el
+++ b/lisp/progmodes/etags.el
@@ -634,9 +634,11 @@ Returns t if it visits a tags table, or nil if there are no more in the list."
                                           tags-table-set-list)))
                           ;; Clear out buffers holding old tables.
                           (dolist (table tags-table-list)
-                            (let ((buffer (find-buffer-visiting table)))
+                            ;; The list can contain items `t'.
+                            (if (stringp table)
+                                (let ((buffer (find-buffer-visiting table)))
                               (if buffer
-                                  (kill-buffer buffer))))
+                                  (kill-buffer buffer)))))
                           (setq tags-table-list (list local-tags-file-name))))
 
                       ;; Recompute tags-table-computed-list.