diff --git a/src/mbyte.c b/src/mbyte.c
index a38ab24..cc8d628 100644
--- a/src/mbyte.c
+++ b/src/mbyte.c
@@ -828,8 +828,8 @@
  * Get class of pointer:
  * 0 for blank or NUL
  * 1 for punctuation
- * 2 for an (ASCII) word character
- * >2 for other word characters
+ * 2 for an alphanumeric word character
+ * >2 for other word characters, including CJK and emoji
  */
     int
 mb_get_class(char_u *p)