diff --git a/programs/test/query_config.c b/programs/test/query_config.c
index b6cbb09..29d7d84 100644
--- a/programs/test/query_config.c
+++ b/programs/test/query_config.c
@@ -47,6 +47,7 @@
 #include "mbedtls/blowfish.h"
 #include "mbedtls/camellia.h"
 #include "mbedtls/ccm.h"
+#include "mbedtls/certs.h"
 #include "mbedtls/chacha20.h"
 #include "mbedtls/chachapoly.h"
 #include "mbedtls/cipher.h"