diff --git a/src/testdir/test_expr.vim b/src/testdir/test_expr.vim
index be95c64..8bba1f0 100644
--- a/src/testdir/test_expr.vim
+++ b/src/testdir/test_expr.vim
@@ -257,10 +257,10 @@
   call v9.CheckLegacyAndVim9Success(lines)
 
   call assert_equal([0, 1, 2], --3->range())
-  call v9.CheckDefAndScriptFailure(['eval --3->range()'], 'E15')
+  call v9.CheckDefAndScriptFailure(['eval --3->range()'], 'E15:')
 
   call assert_equal(1, !+-+0)
-  call v9.CheckDefAndScriptFailure(['eval !+-+0'], 'E15')
+  call v9.CheckDefAndScriptFailure(['eval !+-+0'], 'E15:')
 endfunc
 
 func Test_option_value()
@@ -874,7 +874,7 @@
 " Test for errors in expression evaluation
 func Test_expr_eval_error()
   call v9.CheckLegacyAndVim9Failure(["VAR i = 'abc' .. []"], ['E730:', 'E1105:', 'E730:'])
-  call v9.CheckLegacyAndVim9Failure(["VAR l = [] + 10"], ['E745:', 'E1051:', 'E745'])
+  call v9.CheckLegacyAndVim9Failure(["VAR l = [] + 10"], ['E745:', 'E1051:', 'E745:'])
   call v9.CheckLegacyAndVim9Failure(["VAR v = 10 + []"], ['E745:', 'E1051:', 'E745:'])
   call v9.CheckLegacyAndVim9Failure(["VAR v = 10 / []"], ['E745:', 'E1036:', 'E745:'])
   call v9.CheckLegacyAndVim9Failure(["VAR v = -{}"], ['E728:', 'E1012:', 'E728:'])