diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el
index 9c5c3cc4..3a394d0f 100644
--- a/emacs/notmuch-show.el
+++ b/emacs/notmuch-show.el
@@ -382,7 +382,7 @@ current buffer, if possible."
   (make-symbol (concat "notmuch-show-" type)))
 
 (defun notmuch-show-strip-re (string)
-  (replace-regexp-in-string "^\\([Rr]e: *\\)+" "" string))
+  (replace-regexp-in-string "\\([Rr]e: *\\)+" "" string))
 
 (defvar notmuch-show-previous-subject "")
 (make-variable-buffer-local 'notmuch-show-previous-subject)