diff --git a/src/testdir/test_lambda.vim b/src/testdir/test_lambda.vim
index 4d89546..721c47d 100644
--- a/src/testdir/test_lambda.vim
+++ b/src/testdir/test_lambda.vim
@@ -152,7 +152,7 @@
   endfunction
 
   let l:F = s:gen()
-  call assert_fails(':call l:F()', 'E117:')
+  call assert_fails(':call l:F()', 'E933:')
 endfunction
 
 function! Test_lambda_scope()