diff --git a/tests/data/test429 b/tests/data/test429
index 4091d1be0d..8dd75be04f 100644
--- a/tests/data/test429
+++ b/tests/data/test429
@@ -33,13 +33,13 @@ Funny-head: yesyes
 http
 </server>
 <setenv>
-FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF=contents2023
+%repeat[129 x F]%=contents2023
 </setenv>
 <name>
 Expand environment variable in config file - too long name
 </name>
 <file name="%LOGDIR/cmd">
---expand-data {{FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF}}
+--expand-data {{%repeat[129 x F]%}}
 </file>
 <command>
 http://%HOSTIP:%HTTPPORT/%TESTNUMBER -K %LOGDIR/cmd
@@ -57,7 +57,7 @@ Accept: */*
 Content-Length: 133
 Content-Type: application/x-www-form-urlencoded
 
-{{FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF}}
+{{%repeat[129 x F]%}}
 </protocol>
 </verify>
 </testcase>