diff --git a/src/testdir/test_lambda.vim b/src/testdir/test_lambda.vim
index 250ce5c..f05080e 100644
--- a/src/testdir/test_lambda.vim
+++ b/src/testdir/test_lambda.vim
@@ -362,7 +362,7 @@
 
 func Test_lambda_error()
   " This was causing a crash
-  call assert_fails('ec{@{->{d->()()', 'E15:')
+  call assert_fails('ec{@{->{d->()()', 'E451:')
 endfunc
 
 func Test_closure_error()