diff --git a/include/jwt/impl/jwt.ipp b/include/jwt/impl/jwt.ipp
index 197a614..01b0881 100644
--- a/include/jwt/impl/jwt.ipp
+++ b/include/jwt/impl/jwt.ipp
@@ -607,6 +607,7 @@ void jwt_object::set_decode_params(DecodeParams& dparams, params::detail::valida
 template <typename DecodeParams>
 void jwt_object::set_decode_params(DecodeParams& dparams)
 {
+  (void) dparams; // prevent -Wunused-parameter with gcc
   return;
 }