diff --git a/src/misc1.c b/src/misc1.c
index 3125dfe..b3a18e5 100644
--- a/src/misc1.c
+++ b/src/misc1.c
@@ -3594,6 +3594,7 @@
 /*
  * Vim's version of getenv().
  * Special handling of $HOME, $VIM and $VIMRUNTIME.
+ * Also does ACP to 'enc' conversion for Win32.
  */
     char_u *
 vim_getenv(name, mustfree)