diff --git a/src/testdir/test_startup.vim b/src/testdir/test_startup.vim
index 0387674..bc437a9 100644
--- a/src/testdir/test_startup.vim
+++ b/src/testdir/test_startup.vim
@@ -1441,7 +1441,7 @@
   let logfile = 'Xcq_log.txt'
   let out = system(GetVimCommand() .. ' --clean --log ' .. logfile .. ' -es -X -c "argdelete foobar" -c"7cq"')
   call assert_equal(8, v:shell_error)
-  let log = filter(readfile(logfile), {idx, val -> val =~ "E480"})
+  let log = filter(readfile(logfile), {idx, val -> val =~ "E480:"})
   call assert_match('E480: No match: foobar', log[0])
   call delete(logfile)
 
@@ -1452,7 +1452,7 @@
   else
     call assert_equal(256, v:shell_error)
   endif
-  let log = filter(readfile(logfile), {idx, val -> val =~ "E480"})
+  let log = filter(readfile(logfile), {idx, val -> val =~ "E480:"})
   call assert_match('E480: No match: foobar', log[0])
   call delete('Xcq_log.txt')
 endfunc