diff --git a/tests/data/test410 b/tests/data/test410
index c6470c1844..4d5d660514 100644
--- a/tests/data/test410
+++ b/tests/data/test410
@@ -32,8 +32,11 @@ https
 HTTPS GET with very long request header
  </name>
 # 14 characters repeated 3500 times makes 49000 bytes
+<file name="log/file410">
+Long: %repeat[3500 x header content]%
+</file>
  <command>
--k https://%HOSTIP:%HTTPSPORT/410 -H "Long: %repeat[3500 x header content]%"
+-k https://%HOSTIP:%HTTPSPORT/410 -H @log/file410
 </command>
 </client>