diff --git a/src/testdir/test_vimscript.vim b/src/testdir/test_vimscript.vim
index 89c1001..de87658 100644
--- a/src/testdir/test_vimscript.vim
+++ b/src/testdir/test_vimscript.vim
@@ -5570,7 +5570,7 @@
     call T(19, '{(1} + CONT(19)',	'E110',	"Missing ')'")
     call T(20, '("abc"[1) + CONT(20)',	'E111',	"Missing ']'")
     call T(21, '(1 +) + CONT(21)',	'E15',	"Invalid expression")
-    call T(22, '1 2 + CONT(22)',	'E15',	"Invalid expression")
+    call T(22, '1 2 + CONT(22)',	'E488',	"Trailing characters: 2 +")
     call T(23, '(1 ? 2) + CONT(23)',	'E109',	"Missing ':' after '?'")
     call T(24, '("abc) + CONT(24)',	'E114',	"Missing quote")
     call T(25, "('abc) + CONT(25)",	'E115',	"Missing quote")