diff --git a/t/lib-httpd/apache.conf b/t/lib-httpd/apache.conf
index 7d15e6d44c..f667e7ce2f 100644
--- a/t/lib-httpd/apache.conf
+++ b/t/lib-httpd/apache.conf
@@ -64,6 +64,9 @@ LockFile accept.lock
LoadModule mpm_prefork_module modules/mod_mpm_prefork.so
+
+ LoadModule unixd_module modules/mod_unixd.so
+
PassEnv GIT_VALGRIND