diff --git a/programs/ssl/ssl_test_lib.h b/programs/ssl/ssl_test_lib.h
index e58e2da..e02cf0a 100644
--- a/programs/ssl/ssl_test_lib.h
+++ b/programs/ssl/ssl_test_lib.h
@@ -20,6 +20,8 @@
 #ifndef MBEDTLS_PROGRAMS_SSL_SSL_TEST_LIB_H
 #define MBEDTLS_PROGRAMS_SSL_SSL_TEST_LIB_H
 
+#include "mbedtls/version.h"
+
 #if !defined(MBEDTLS_CONFIG_FILE)
 #include "mbedtls/config.h"
 #else