diff --git a/doc/misc/emacs-mime.texi b/doc/misc/emacs-mime.texi
index ebf208be48c220c7e567662ae92f1ae6d15c8e13..5f377e57725f7d86658934aed46a8dd03290215e 100644
--- a/doc/misc/emacs-mime.texi
+++ b/doc/misc/emacs-mime.texi
@@ -1890,5 +1890,5 @@ Documentation of the text/plain format parameter for flowed text.
 
 @c Local Variables:
 @c mode: texinfo
-@c coding: iso-8859-1
+@c coding: utf-8
 @c End:
diff --git a/doc/misc/gnus-coding.texi b/doc/misc/gnus-coding.texi
index 15393ad803263d2df3532e555cd79dd54176ffc2..4e5855627b8a2cb113c23970fa61f3ed9dd5bc85 100644
--- a/doc/misc/gnus-coding.texi
+++ b/doc/misc/gnus-coding.texi
@@ -387,5 +387,5 @@ changed.
 
 @c Local Variables:
 @c mode: texinfo
-@c coding: iso-8859-1
+@c coding: utf-8
 @c End:
diff --git a/lisp/gnus/gnus-cite.el b/lisp/gnus/gnus-cite.el
index 3840f33687cf1c966d095d1759be28beac6dfbc3..22e97cd8f4fab623ea6542ad5edac5f3fb72f5a3 100644
--- a/lisp/gnus/gnus-cite.el
+++ b/lisp/gnus/gnus-cite.el
@@ -1250,7 +1250,7 @@ When enabled, it automatically turns on `font-lock-mode'."
 (provide 'gnus-cite)
 
 ;; Local Variables:
-;; coding: iso-8859-1
+;; coding: utf-8
 ;; End:
 
 ;;; gnus-cite.el ends here
diff --git a/lisp/ibuffer.el b/lisp/ibuffer.el
index 8f934b8628802ee61c1d791649eb18e50a1125fb..586c8306a362d63373a78fa68a9dca6d840e35f1 100644
--- a/lisp/ibuffer.el
+++ b/lisp/ibuffer.el
@@ -3030,7 +3030,7 @@ defaults to one.
 (run-hooks 'ibuffer-load-hook)
 
 ;; Local Variables:
-;; coding: iso-8859-1
+;; coding: utf-8
 ;; End:
 
 ;;; ibuffer.el ends here