diff --git a/rclcpp/include/rclcpp/serialization.hpp b/rclcpp/include/rclcpp/serialization.hpp
index 53fe59d..97d0449 100644
--- a/rclcpp/include/rclcpp/serialization.hpp
+++ b/rclcpp/include/rclcpp/serialization.hpp
@@ -39,10 +39,6 @@ template<typename T>
 struct is_serialized_message_class : std::false_type
 {};
 
-template<>
-struct is_serialized_message_class<rcl_serialized_message_t>: std::true_type
-{};
-
 template<>
 struct is_serialized_message_class<SerializedMessage>: std::true_type
 {};
diff --git a/rclcpp/include/rclcpp/subscription_traits.hpp b/rclcpp/include/rclcpp/subscription_traits.hpp
index 3a84764..8eacd3a 100644
--- a/rclcpp/include/rclcpp/subscription_traits.hpp
+++ b/rclcpp/include/rclcpp/subscription_traits.hpp
@@ -42,15 +42,6 @@ template<typename T>
 struct is_serialized_subscription_argument : std::false_type
 {};
 
-template<>
-struct is_serialized_subscription_argument<rcl_serialized_message_t>: std::true_type
-{};
-
-template<>
-struct is_serialized_subscription_argument<std::shared_ptr<rcl_serialized_message_t>>
-  : std::true_type
-{};
-
 template<>
 struct is_serialized_subscription_argument<SerializedMessage>: std::true_type
 {};
diff --git a/rclcpp/test/test_subscription_traits.cpp b/rclcpp/test/test_subscription_traits.cpp
index c99f25b..c7b062a 100644
--- a/rclcpp/test/test_subscription_traits.cpp
+++ b/rclcpp/test/test_subscription_traits.cpp
@@ -67,13 +67,13 @@ TEST(TestSubscriptionTraits, is_serialized_callback) {
   // Test regular functions
   auto cb1 = &serialized_callback_copy;
   static_assert(
-    rclcpp::subscription_traits::is_serialized_callback<decltype(cb1)>::value == true,
-    "rcl_serialized_message_t in a first argument callback makes it a serialized callback");
+    rclcpp::subscription_traits::is_serialized_callback<decltype(cb1)>::value == false,
+    "passing a rcl_serialized_message_t * is not a serialized callback");
 
   auto cb2 = &serialized_callback_shared_ptr;
   static_assert(
-    rclcpp::subscription_traits::is_serialized_callback<decltype(cb2)>::value == true,
-    "std::shared_ptr<rcl_serialized_message_t> in a callback makes it a serialized callback");
+    rclcpp::subscription_traits::is_serialized_callback<decltype(cb2)>::value == false,
+    "passing a std::shared_ptr<rcl_serialized_message_t> is not a serialized callback");
 
   auto cb3 = &not_serialized_callback;
   static_assert(
@@ -90,8 +90,8 @@ TEST(TestSubscriptionTraits, is_serialized_callback) {
       (void) unused;
     };
   static_assert(
-    rclcpp::subscription_traits::is_serialized_callback<decltype(cb5)>::value == true,
-    "rcl_serialized_message_t in a first argument callback makes it a serialized callback");
+    rclcpp::subscription_traits::is_serialized_callback<decltype(cb5)>::value == false,
+    "passing rcl_serialized_message_t is not a serialized callback");
 
   using MessageT = test_msgs::msg::Empty;
   using MessageTAllocator = std::allocator<void>;