diff --git a/common/ssl_calls.h b/common/ssl_calls.h
index c470e63a..aa7cffb1 100644
--- a/common/ssl_calls.h
+++ b/common/ssl_calls.h
@@ -84,8 +84,8 @@ ssl_gen_key_xrdp1(int key_size_in_bits, char* exp, int exp_len,
 /* ssl_tls */
 struct ssl_tls
 {
-    void *ssl; /* SSL * */
-    void *ctx; /* SSL_CTX * */
+    struct ssl_st *ssl; /* SSL * */
+    struct ssl_ctx_st *ctx; /* SSL_CTX * */
     char *cert;
     char *key;
     struct trans *trans;