diff --git a/source/subs_functions/subs_functions.bas b/source/subs_functions/subs_functions.bas
index b5ce9bc4b..8b0e7f174 100644
--- a/source/subs_functions/subs_functions.bas
+++ b/source/subs_functions/subs_functions.bas
@@ -2836,7 +2836,7 @@ id.subfunc = 2
 id.callname = "sub_clsDest"
 id.args = 3
 id.arg = MKL$(LONGTYPE - ISPOINTER) + MKL$(LONGTYPE - ISPOINTER) + MKL$(ULONGTYPE - ISPOINTER)
-id.specialformat = "[?][,?][,?]"
+id.specialformat = "[?][,[?][,?]]"
 id.hr_syntax = "CLS [method%] [, bgColor&] [, dest&]"
 regid