diff --git a/apps/s_server.c b/apps/s_server.c
index 7f5af98c1..7f3bfb6ec 100644
--- a/apps/s_server.c
+++ b/apps/s_server.c
@@ -690,7 +690,8 @@ bad:
 
 #ifndef NO_RSA
 #if 1
-	SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
+	if (!no_tmp_rsa)
+		SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
 #else
 	if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
 		{