diff --git a/tests/http/testenv/mod_curltest/mod_curltest.c b/tests/http/testenv/mod_curltest/mod_curltest.c
index 76ce5f4597..28fa5ff57d 100644
--- a/tests/http/testenv/mod_curltest/mod_curltest.c
+++ b/tests/http/testenv/mod_curltest/mod_curltest.c
@@ -62,6 +62,7 @@ static int curltest_post_config(apr_pool_t *p, apr_pool_t *plog,
   void *data = NULL;
   const char *key = "mod_curltest_init_counter";
 
+  (void)p;
   (void)plog;
   (void)ptemp;