diff --git a/tests/suites/test_suite_ssl.function b/tests/suites/test_suite_ssl.function
index 9dfb7ed..ed73678 100644
--- a/tests/suites/test_suite_ssl.function
+++ b/tests/suites/test_suite_ssl.function
@@ -7,6 +7,7 @@
 #include <ssl_tls13_keys.h>
 #include <ssl_tls13_invasive.h>
 #include "test/certs.h"
+#include <test/ssl_helpers.h>
 
 #if defined(MBEDTLS_SSL_CACHE_C)
 #include "mbedtls/ssl_cache.h"