diff --git a/src/server.c b/src/server.c
index 67fad9d1..b87c6e57 100644
--- a/src/server.c
+++ b/src/server.c
@@ -217,6 +217,7 @@ int ssh_get_key_params(ssh_session session, ssh_key *privkey){
         *privkey = session->srv.ecdsa_key;
         break;
       case SSH_KEYTYPE_UNKNOWN:
+      default:
         *privkey = NULL;
     }