diff --git a/runtime/doc/vim9.txt b/runtime/doc/vim9.txt
index 406aedc..6ca1d74 100644
--- a/runtime/doc/vim9.txt
+++ b/runtime/doc/vim9.txt
@@ -457,7 +457,8 @@
 	var Lambda = (arg) => expression
 
 No line break is allowed in the arguments of a lambda up to and including the
-"=>".  This is OK: >
+"=>" (so that Vim can tell the difference between an expression in parenthesis
+and lambda arguments).  This is OK: >
 	filter(list, (k, v) =>
 			v > 0)
 This does not work: >
@@ -998,9 +999,14 @@
 			Note that for command line completion of {func} you
 			can prepend "s:" to find script-local functions.
 
-:disa[ssemble]! {func}	Like `:disassemble` but with the instructions used for
+:disa[ssemble] profile {func}
+			Like `:disassemble` but with the instructions used for
 			profiling.
 
+:disa[ssemble] debug {func}
+			Like `:disassemble` but with the instructions used for
+			debugging.
+
 Limitations ~
 
 Local variables will not be visible to string evaluation.  For example: >