diff --git a/src/common/tortls.c b/src/common/tortls.c
index 3034fbcd57..aa1914068a 100644
--- a/src/common/tortls.c
+++ b/src/common/tortls.c
@@ -17,6 +17,7 @@
 #include "orconfig.h"
 
 #define TORTLS_PRIVATE
+#define TORTLS_OPENSSL_PRIVATE
 
 #include <assert.h>
 #ifdef _WIN32 /*wrkard for dtls1.h >= 0.9.8m of "#include <winsock.h>"*/