diff --git a/src/entt/core/type_traits.hpp b/src/entt/core/type_traits.hpp
index 9c1fdbe37..e483747e6 100644
--- a/src/entt/core/type_traits.hpp
+++ b/src/entt/core/type_traits.hpp
@@ -43,14 +43,55 @@ template<typename>
 struct shared_traits;
 
 
+/**
+ * @brief Specialization used to get rid of constness.
+ * @tparam Type Shared type.
+ */
+template<typename Type>
+struct shared_traits<const Type>
+        : shared_traits<Type>
+{};
+
+
+/**
+ * @brief Provides the member constant `value` to true if a given type is
+ * shared. In all other cases, `value` is false.
+ */
+template<typename, typename = std::void_t<>>
+struct is_shared: std::false_type {};
+
+
+/**
+ * @brief Provides the member constant `value` to true if a given type is
+ * shared. In all other cases, `value` is false.
+ * @tparam Type Potentially shared type.
+ */
+template<typename Type>
+struct is_shared<Type, std::void_t<typename shared_traits<std::decay_t<Type>>::type>>: std::true_type {};
+
+
+/**
+ * @brief Helper variable template.
+ *
+ * True if a given type is shared, false otherwise.
+ *
+ * @tparam Type Potentially shared type.
+ */
+template<class Type>
+constexpr auto is_shared_v = is_shared<Type>::value;
+
+
+}
+
+
 /**
  * @brief Makes an already existing type a shared type.
  * @param type Type to make shareable.
  */
 #define ENTT_SHARED_TYPE(type)\
     template<>\
-    struct shared_traits<type>\
-        : std::integral_constant<typename hashed_string::hash_type, hashed_string::to_value(#type)>\
+    struct entt::shared_traits<type>\
+        : std::integral_constant<typename entt::hashed_string::hash_type, entt::hashed_string::to_value(#type)>\
     {}
 
 
@@ -74,35 +115,4 @@ struct shared_traits;
     class clazz
 
 
-/**
- * @brief Provides the member constant `value` to true if a given type is
- * shared. In all other cases, `value` is false.
- */
-template<typename>
-struct is_shared: std::false_type {};
-
-
-/**
- * @brief Provides the member constant `value` to true if a given type is
- * shared. In all other cases, `value` is false.
- * @tparam Type Potentially shared type.
- */
-template<typename Type>
-struct is_shared<shared_traits<Type>>: std::true_type {};
-
-
-/**
- * @brief Helper variable template.
- *
- * True if a given type is shared, false otherwise.
- *
- * @tparam Type Potentially shared type.
- */
-template<class Type>
-constexpr auto is_shared_v = is_shared<Type>::value;
-
-
-}
-
-
 #endif // ENTT_CORE_TYPE_TRAITS_HPP
diff --git a/test/lib/a_module.cpp b/test/lib/a_module.cpp
index 7f3d51c6b..ed65e160e 100644
--- a/test/lib/a_module.cpp
+++ b/test/lib/a_module.cpp
@@ -10,6 +10,11 @@
 #endif
 #endif
 
+ENTT_SHARED_TYPE(int);
+ENTT_SHARED_TYPE(char);
+ENTT_SHARED_TYPE(double);
+ENTT_SHARED_TYPE(float);
+
 LIB_EXPORT typename entt::registry<>::component_type a_module_int_type() {
     entt::registry<> registry;
 
diff --git a/test/lib/another_module.cpp b/test/lib/another_module.cpp
index d32a1fa74..451539b28 100644
--- a/test/lib/another_module.cpp
+++ b/test/lib/another_module.cpp
@@ -10,6 +10,11 @@
 #endif
 #endif
 
+ENTT_SHARED_TYPE(int);
+ENTT_SHARED_TYPE(char);
+ENTT_SHARED_TYPE(double);
+ENTT_SHARED_TYPE(float);
+
 LIB_EXPORT typename entt::registry<>::component_type another_module_int_type() {
     entt::registry<> registry;
 
diff --git a/test/lib/lib.cpp b/test/lib/lib.cpp
index 9905a16f2..540bbe82e 100644
--- a/test/lib/lib.cpp
+++ b/test/lib/lib.cpp
@@ -6,6 +6,9 @@ extern typename entt::registry<>::component_type a_module_char_type();
 extern typename entt::registry<>::component_type another_module_int_type();
 extern typename entt::registry<>::component_type another_module_char_type();
 
+ENTT_SHARED_TYPE(int);
+ENTT_SHARED_TYPE(char);
+
 TEST(Lib, Shared) {
     entt::registry<> registry;