diff --git a/src/testdir/test_vim9_expr.vim b/src/testdir/test_vim9_expr.vim
index ef56a67..edc655a 100644
--- a/src/testdir/test_vim9_expr.vim
+++ b/src/testdir/test_vim9_expr.vim
@@ -1067,10 +1067,11 @@
 enddef
 
 def Test_expr7_lambda()
-  " lambda
   let La = { -> 'result'}
   assert_equal('result', La())
   assert_equal([1, 3, 5], [1, 2, 3]->map({key, val -> key + val}))
+
+  call CheckDefFailure(["filter([1, 2], {k,v -> 1})"], 'E1069:')
 enddef
 
 def Test_expr7_lambda_vim9script()
diff --git a/src/testdir/test_vim9_func.vim b/src/testdir/test_vim9_func.vim
index f09ecc9..77ada94 100644
--- a/src/testdir/test_vim9_func.vim
+++ b/src/testdir/test_vim9_func.vim
@@ -967,7 +967,7 @@
 
 def Line_continuation_in_lambda(): list<number>
   let x = range(97, 100)
-      ->map({_,v -> nr2char(v)
+      ->map({_, v -> nr2char(v)
           ->toupper()})
       ->reverse()
   return x