diff --git a/include/magic_enum.hpp b/include/magic_enum.hpp
index 6fde1f2..bbd09b9 100644
--- a/include/magic_enum.hpp
+++ b/include/magic_enum.hpp
@@ -470,17 +470,12 @@ constexpr auto n() noexcept {
   if constexpr (supported<decltype(V)>::value) {
 #if defined(MAGIC_ENUM_GET_ENUM_NAME_BUILTIN)
     constexpr auto name_ptr = MAGIC_ENUM_GET_ENUM_NAME_BUILTIN(V);
-    constexpr auto name = name_ptr ? str_view{name_ptr, std::char_traits<char>::length(name_ptr)} : str_view{};
+    auto name = name_ptr ? str_view{name_ptr, std::char_traits<char>::length(name_ptr)} : str_view{};
 #elif defined(__clang__)
     auto name = str_view{__PRETTY_FUNCTION__ + 34, sizeof(__PRETTY_FUNCTION__) - 36};
     if (name.str_[0] == '(' || name.str_[0] == '-' || (name.str_[0] >= '0' && name.str_[0] <= '9')) {
       name = str_view{};;
     }
-    constexpr auto prefix = n<decltype(V)>().size();
-    if (name.size_ > prefix && name.str_[prefix] == ':') {
-      name.size_ -= (prefix + 2);
-      name.str_ += (prefix + 2);
-    }
 #elif defined(__GNUC__)
     auto name = str_view{__PRETTY_FUNCTION__, sizeof(__PRETTY_FUNCTION__) - 1};
     if (name.str_[name.size_ - 1] == ']') {
@@ -493,24 +488,26 @@ constexpr auto n() noexcept {
     if (name.str_[0] == '(') {
       name = str_view{};
     }
+#elif defined(_MSC_VER)
+    str_view name;
+    if ((__FUNCSIG__[5] == '_' && __FUNCSIG__[35] != '(') || (__FUNCSIG__[5] == 'c' && __FUNCSIG__[41] != '(')) {
+      name = str_view{__FUNCSIG__ + 35, sizeof(__FUNCSIG__) - 52};
+    }
+#else
+    auto name = str_view{};
+#endif
     constexpr auto prefix = n<decltype(V)>().size();
     if (name.size_ > prefix && name.str_[prefix] == ':') {
       name.size_ -= (prefix + 2);
       name.str_ += (prefix + 2);
     }
-#elif defined(_MSC_VER)
-    str_view name;
-    if ((__FUNCSIG__[5] == '_' && __FUNCSIG__[35] != '(') || (__FUNCSIG__[5] == 'c' && __FUNCSIG__[41] != '(')) {
-      name = str_view{__FUNCSIG__ + 35, sizeof(__FUNCSIG__) - 52};
-      constexpr auto prefix = n<decltype(V)>().size();
-      if (name.size_ > prefix && name.str_[prefix] == ':') {
-        name.size_ -= (prefix + 2);
-        name.str_ += (prefix + 2);
+    for (std::size_t i = 0; i < name.size_; ++i) {
+      if (name.str_[i] == ':') {
+        name.size_ -= (i + 2);
+        name.str_ += (i + 2);
+        break;
       }
     }
-#else
-    auto name = str_view{};
-#endif
     return name;
   } else {
     return str_view{}; // Unsupported compiler or Invalid customize.
diff --git a/test/test.cpp b/test/test.cpp
index c87da78..234d530 100644
--- a/test/test.cpp
+++ b/test/test.cpp
@@ -453,6 +453,14 @@ enum lt1 { s1, loooooooooooooooooooong1 };
 enum lt2 : unsigned { s2, loooooooooooooooooooong2 };
 enum class lt3 { s3, loooooooooooooooooooong3 };
 enum class lt4 : unsigned { s4, loooooooooooooooooooong4 };
+class foo1 {
+ public:
+  enum class lt5 { s5, loooooooooooooooooooong5 };
+};
+class foo2 {
+ public:
+  enum lt6 { s6, loooooooooooooooooooong6 };
+};
 
 TEST_CASE("enum_name") {
   SECTION("automatic storage") {
@@ -502,6 +510,10 @@ TEST_CASE("enum_name") {
     REQUIRE(enum_name(lt3::loooooooooooooooooooong3) == "loooooooooooooooooooong3");
     REQUIRE(enum_name(lt4::s4) == "s4");
     REQUIRE(enum_name(lt4::loooooooooooooooooooong4) == "loooooooooooooooooooong4");
+    REQUIRE(enum_name(foo1::lt5::s5) == "s5");
+    REQUIRE(enum_name(foo1::lt5::loooooooooooooooooooong5) == "loooooooooooooooooooong5");
+    REQUIRE(enum_name(foo2::s6) == "s6");
+    REQUIRE(enum_name(foo2::loooooooooooooooooooong6) == "loooooooooooooooooooong6");
   }
 
   SECTION("static storage") {