diff --git a/tests/data/test433 b/tests/data/test433
index e7cb4d225d..9658ded0bf 100644
--- a/tests/data/test433
+++ b/tests/data/test433
@@ -30,6 +30,8 @@ http
 </server>
 <setenv>
 XDG_CONFIG_HOME=%PWD/log
+HOME=
+CURL_HOME=
 </setenv>
 <name>
 Verify XDG_CONFIG_HOME use to find .curlrc