diff --git a/programs/develop/libraries/box_lib/trunk/filebrowser.mac b/programs/develop/libraries/box_lib/trunk/filebrowser.mac
index 8291ab80d..0028034f3 100644
--- a/programs/develop/libraries/box_lib/trunk/filebrowser.mac
+++ b/programs/develop/libraries/box_lib/trunk/filebrowser.mac
@@ -895,7 +895,7 @@ fb_char_toupper:
 	ret
 ;---------------------------------------------------------------------
 fb_char_todown:
-; convert character to uppercase, using cp866 encoding
+; convert character to lowercase, using cp866 encoding
 ; in: al=symbol
 ; out: al=converted symbol
 	cmp	al, 'A'
diff --git a/programs/fs/kfm/trunk/convchar.inc b/programs/fs/kfm/trunk/convchar.inc
index 6c308041b..ca58133d2 100644
--- a/programs/fs/kfm/trunk/convchar.inc
+++ b/programs/fs/kfm/trunk/convchar.inc
@@ -24,7 +24,7 @@ char_toupper:
     ret
 ;---------------------------------------------------------------------
 char_todown:
-; convert character to uppercase, using cp866 encoding
+; convert character to lowercase, using cp866 encoding
 ; in: al=symbol
 ; out: al=converted symbol
 	cmp	al, 'A'