diff --git a/src/buffer.h b/src/buffer.h
index 2c7318305ea..76e8c84b543 100644
--- a/src/buffer.h
+++ b/src/buffer.h
@@ -369,7 +369,7 @@ struct buffer
     /* Position where the overlay lists are centered.  */
     Lisp_Object overlay_center;
 
-    /* Lisp of symbols naming the file format used for visited file. */
+    /* List of symbols naming the file format used for visited file. */
     Lisp_Object file_format;
 
     /* True if the newline position cache and width run cache are