diff --git a/src/testdir/test_assert.vim b/src/testdir/test_assert.vim
index 7c9d090..f11a3a9 100644
--- a/src/testdir/test_assert.vim
+++ b/src/testdir/test_assert.vim
@@ -368,7 +368,7 @@
   eval 1->test_override('redraw')
   call test_override('ALL', 0)
   call assert_fails("call test_override('xxx', 1)", 'E475:')
-  call assert_fails("call test_override('redraw', 'yes')", 'E474:')
+  call assert_fails("call test_override('redraw', 'yes')", 'E1210:')
 endfunc
 
 func Test_mouse_position()