diff --git a/include/continuable/continuable-primitives.hpp b/include/continuable/continuable-primitives.hpp
index a110e6f..6e808ae 100644
--- a/include/continuable/continuable-primitives.hpp
+++ b/include/continuable/continuable-primitives.hpp
@@ -38,6 +38,7 @@ namespace cti {
 /// \defgroup Primitives Primitives
 /// provides basic tag types for creating a customized callbacks
 /// and continuations.
+///
 /// For the callback and the continuation `Args...` represents the
 /// asynchronous results:
 /// ```cpp
@@ -77,7 +78,7 @@ struct is_ready_arg_t {};
 /// It's required that the query of is_ready_arg_t returns true.
 ///
 /// \since 4.0.0
-struct query_arg_t { };
+struct query_arg_t {};
 
 /// Represents the tag type that is used to disambiguate the
 /// callback operator() in order to take the exception asynchronous chain.