diff --git a/include/continuable/detail/base.hpp b/include/continuable/detail/base.hpp
index f720717..173bd90 100644
--- a/include/continuable/detail/base.hpp
+++ b/include/continuable/detail/base.hpp
@@ -333,7 +333,8 @@ struct error_callback<hints::signature_hint_tag<Args...>, Callback, Executor,
   }
 
   /// The operator which is called when an error occurred
-  void operator()(types::dispatch_error_tag /*tag*/, types::error_type error) {
+  void operator()(types::dispatch_error_tag /*tag*/,
+                  types::error_type /*error*/) {
     /*
      *TODO
      *auto invoker = [] {};
@@ -345,12 +346,12 @@ struct error_callback<hints::signature_hint_tag<Args...>, Callback, Executor,
   }
 
   /// Resolves the continuation with the given values
-  void set_value(Args... args) {
+  void set_value(Args... /*args*/) {
     // std::move(next_callback_)(std::move(args)...);
   }
 
   /// Resolves the continuation with the given error variable.
-  void set_exception(types::error_type error) {
+  void set_exception(types::error_type /*error*/) {
     // std::move(next_callback_)(types::dispatch_error_tag{}, std::move(error));
   }
 };
diff --git a/test/playground/test-playground.cpp b/test/playground/test-playground.cpp
index 41cd795..89c4dcf 100644
--- a/test/playground/test-playground.cpp
+++ b/test/playground/test-playground.cpp
@@ -46,17 +46,17 @@ int main(int, char**) {
       .then([](std::string /*response*/) {
         // ...
       })
-      /*.catching([](std::exception_ptr) {
+      .catching([](std::exception_ptr) {
         // ...
-      })*/;
+      });
 
   http_request2("github.com")
       .then([](std::string /*response*/) {
         // ...
       })
-      /*.catching([](std::exception_ptr) {
+      .catching([](std::exception_ptr) {
         // ...
-      })*/;
+      });
 
   return 0;
 }