diff --git a/include/pybind11/attr.h b/include/pybind11/attr.h
index 742a2fc40..023a0bede 100644
--- a/include/pybind11/attr.h
+++ b/include/pybind11/attr.h
@@ -671,10 +671,10 @@ struct process_attributes {
 };
 
 template <typename T>
-struct is_keep_alive : std::false_type { };
+struct is_keep_alive : std::false_type {};
 
 template <size_t Nurse, size_t Patient>
-struct is_keep_alive<keep_alive<Nurse, Patient>> : std::true_type { };
+struct is_keep_alive<keep_alive<Nurse, Patient>> : std::true_type {};
 
 template <typename T>
 using is_call_guard = is_instantiation<call_guard, T>;
diff --git a/include/pybind11/pybind11.h b/include/pybind11/pybind11.h
index e2dddb9f0..3ed240948 100644
--- a/include/pybind11/pybind11.h
+++ b/include/pybind11/pybind11.h
@@ -1850,9 +1850,11 @@ public:
         static_assert(0 == detail::constexpr_sum(std::is_base_of<arg, Extra>::value...),
                       "Argument annotations are not allowed for properties");
         static_assert(0 == detail::constexpr_sum(detail::is_call_guard<Extra>::value...),
-                      "def_property family does not currently support call_guard. Use a py::cpp_function instead.");
+                      "def_property family does not currently support call_guard. Use a "
+                      "py::cpp_function instead.");
         static_assert(0 == detail::constexpr_sum(detail::is_keep_alive<Extra>::value...),
-                      "def_property family does not currently support keep_alive. Use a py::cpp_function instead.");
+                      "def_property family does not currently support keep_alive. Use a "
+                      "py::cpp_function instead.");
         auto rec_fget = get_function_record(fget), rec_fset = get_function_record(fset);
         auto *rec_active = rec_fget;
         if (rec_fget) {