diff --git a/headers/meta.hpp/meta_states/function.hpp b/headers/meta.hpp/meta_states/function.hpp
index 1d8a25c..3f7299f 100644
--- a/headers/meta.hpp/meta_states/function.hpp
+++ b/headers/meta.hpp/meta_states/function.hpp
@@ -49,7 +49,7 @@ namespace meta_hpp::detail
                 std::ignore = std::invoke(
                     std::move(function),
                     (args.data() + Is)->cast<type_list_at_t<Is, argument_types>>()...);
-                return {};
+                return value{};
             } else {
                 return_type&& return_value = std::invoke(
                     std::move(function),
diff --git a/headers/meta.hpp/meta_states/method.hpp b/headers/meta.hpp/meta_states/method.hpp
index 762b0d4..deb11a6 100644
--- a/headers/meta.hpp/meta_states/method.hpp
+++ b/headers/meta.hpp/meta_states/method.hpp
@@ -56,7 +56,7 @@ namespace meta_hpp::detail
                     std::move(method),
                     inst.cast<qualified_type>(),
                     (args.data() + Is)->cast<type_list_at_t<Is, argument_types>>()...);
-                return {};
+                return value{};
             } else {
                 return_type&& return_value = std::invoke(
                     std::move(method),
diff --git a/headers/meta.hpp/meta_types/class_type.hpp b/headers/meta.hpp/meta_types/class_type.hpp
index de4aebc..09d2459 100644
--- a/headers/meta.hpp/meta_types/class_type.hpp
+++ b/headers/meta.hpp/meta_types/class_type.hpp
@@ -109,7 +109,7 @@ namespace meta_hpp
                 return ctor.second.invoke(std::forward<Args>(args)...);
             }
         }
-        return {};
+        return value{};
     }
 
     template < typename... Args >
diff --git a/manuals/meta_examples/classes_example.cpp b/manuals/meta_examples/classes_example.cpp
index ea6b6aa..ad71d88 100644
--- a/manuals/meta_examples/classes_example.cpp
+++ b/manuals/meta_examples/classes_example.cpp
@@ -71,7 +71,7 @@ TEST_CASE("meta/meta_examples/classes/usage") {
     const meta::method rectangle_area = rectangle_type.get_method("get_area");
 
     // creates a rectangle instance by the registered constructor(int, int)
-    const meta::value rectangle_v = rectangle_type.create(10, 20).value();
+    const meta::value rectangle_v = rectangle_type.create(10, 20);
 
     // calls the method with the dynamic rectangle instance 'rectangle_v'
     CHECK(rectangle_area.invoke(rectangle_v) == 200);
diff --git a/manuals/meta_examples/enums_examples.cpp b/manuals/meta_examples/enums_examples.cpp
index f5970dc..123444e 100644
--- a/manuals/meta_examples/enums_examples.cpp
+++ b/manuals/meta_examples/enums_examples.cpp
@@ -49,11 +49,11 @@ TEST_CASE("meta/meta_examples/enums/usage") {
     const meta::enum_type align_type = meta::resolve_type(e);
 
     // converts the enumerator to its name
-    CHECK(align_type.value_to_name(e).value() == "center");
+    CHECK(align_type.value_to_name(e) == "center");
 
     // also, it works with dynamic value types
-    CHECK(align_type.value_to_name(meta::value{e}).value() == "center");
+    CHECK(align_type.value_to_name(meta::value{e}) == "center");
 
     // ... and back again
-    CHECK(align_type.name_to_value("center").value() == e);
+    CHECK(align_type.name_to_value("center") == e);
 }
diff --git a/manuals/meta_examples/functions_example.cpp b/manuals/meta_examples/functions_example.cpp
index b2b08c4..a5f5873 100644
--- a/manuals/meta_examples/functions_example.cpp
+++ b/manuals/meta_examples/functions_example.cpp
@@ -59,7 +59,7 @@ TEST_CASE("meta/meta_examples/functions/usage") {
     CHECK(sub_function.is_invocable_with<int, int>());
 
     // calls the function and retrieves a returned value
-    const meta::value sub_result_value = sub_function.invoke(60, 18).value();
+    const meta::value sub_result_value = sub_function.invoke(60, 18);
 
     // checks the type of the returned value
     CHECK(sub_result_value.get_type() == meta::resolve_type<int>());
diff --git a/manuals/meta_examples/methods_example.cpp b/manuals/meta_examples/methods_example.cpp
index ddd4a48..5d1f170 100644
--- a/manuals/meta_examples/methods_example.cpp
+++ b/manuals/meta_examples/methods_example.cpp
@@ -69,7 +69,7 @@ TEST_CASE("meta/meta_examples/methods/usage") {
     CHECK(ivec2_add.is_invocable_with<ivec2&, ivec2>());
 
     // calls the method and retrieves a returned value
-    const meta::value ivec2_add_result_value = ivec2_add.invoke(v, ivec2{22, 11}).value();
+    const meta::value ivec2_add_result_value = ivec2_add.invoke(v, ivec2{22, 11});
 
     // checks the type and value of the result
     CHECK(ivec2_add_result_value.get_type() == meta::resolve_type<ivec2>());