diff --git a/lisp/comint.el b/lisp/comint.el
index afbaef1baf2..dcd4a5ae4cf 100644
--- a/lisp/comint.el
+++ b/lisp/comint.el
@@ -185,10 +185,10 @@ the remaining prompts will be accidentally messed up.  You may
 wish to put something like the following in your init file:
 
 \(add-hook \\='comint-mode-hook
-	  (lambda ()
-	    (define-key comint-mode-map [remap kill-region] \\='comint-kill-region)
-	    (define-key comint-mode-map [remap kill-whole-line]
-	      \\='comint-kill-whole-line)))
+          (lambda ()
+            (define-key comint-mode-map [remap kill-region] \\='comint-kill-region)
+            (define-key comint-mode-map [remap kill-whole-line]
+              \\='comint-kill-whole-line)))
 
 If you sometimes use comint-mode on text-only terminals or with `emacs -nw',
 you might wish to use another binding for `comint-kill-whole-line'."