diff --git a/Chaos/Cipher/Arc4/Arc4Crypt.hpp b/Chaos/Cipher/Arc4/Arc4Crypt.hpp
index 9dfbbe7..713e86f 100644
--- a/Chaos/Cipher/Arc4/Arc4Crypt.hpp
+++ b/Chaos/Cipher/Arc4/Arc4Crypt.hpp
@@ -82,4 +82,4 @@ private:
 
 } // namespace Chaos::Cipher::Arc4
 
-#endif
+#endif // CHAOS_CIPHER_ARC4_ARC4CRYPT_HPP
diff --git a/Chaos/Cipher/Arc4/Arc4Gen.hpp b/Chaos/Cipher/Arc4/Arc4Gen.hpp
index c2e02e3..af2e833 100644
--- a/Chaos/Cipher/Arc4/Arc4Gen.hpp
+++ b/Chaos/Cipher/Arc4/Arc4Gen.hpp
@@ -108,4 +108,4 @@ private:
 
 } // namespace Chaos::Cipher::Arc4
 
-#endif
+#endif // CHAOS_CIPHER_ARC4_ARC4GEN_HPP
diff --git a/Chaos/Hash/Hash.hpp b/Chaos/Hash/Hash.hpp
index 2168bbf..402e572 100644
--- a/Chaos/Hash/Hash.hpp
+++ b/Chaos/Hash/Hash.hpp
@@ -34,4 +34,4 @@ private:
 
 } // namespace Chaos::Hash
 
-#endif
+#endif // CHAOS_HASH_HASH_HPP
diff --git a/Chaos/Hash/Hasher.hpp b/Chaos/Hash/Hasher.hpp
index 12137fa..02e97ac 100644
--- a/Chaos/Hash/Hasher.hpp
+++ b/Chaos/Hash/Hasher.hpp
@@ -38,4 +38,4 @@ private:
 
 } // namespace Chaos::Hash
 
-#endif
+#endif // CHAOS_HASH_HASHER_HPP
diff --git a/Chaos/Hash/Md4.hpp b/Chaos/Hash/Md4.hpp
index 850f4c7..e4c1268 100644
--- a/Chaos/Hash/Md4.hpp
+++ b/Chaos/Hash/Md4.hpp
@@ -302,4 +302,4 @@ private:
 
 } // namespace Chaos::Hash::Md4
 
-#endif
+#endif // CHAOS_HASH_MD4_HPP
diff --git a/Chaos/Hash/Md5.hpp b/Chaos/Hash/Md5.hpp
index 2d6661c..9ea28ce 100644
--- a/Chaos/Hash/Md5.hpp
+++ b/Chaos/Hash/Md5.hpp
@@ -326,4 +326,4 @@ private:
 
 } // namespace Chaos::Hash::Md5
 
-#endif
+#endif // CHAOS_HASH_MD5_HPP
diff --git a/Chaos/Mac/Hmac.hpp b/Chaos/Mac/Hmac.hpp
index aafbfaf..b1b9c54 100644
--- a/Chaos/Mac/Hmac.hpp
+++ b/Chaos/Mac/Hmac.hpp
@@ -145,4 +145,4 @@ private:
 
 } // namespace Chaos::Mac::Hmac
 
-#endif
+#endif // CHAOS_MAC_HMAC_HPP
diff --git a/Chaos/Service/ChaosException.hpp b/Chaos/Service/ChaosException.hpp
index a989037..761c406 100644
--- a/Chaos/Service/ChaosException.hpp
+++ b/Chaos/Service/ChaosException.hpp
@@ -28,4 +28,4 @@ private:
 
 } // namespace Chaos::Service
 
-#endif
+#endif // CHAOS_SERVICE_CHAOSEXCEPTION_HPP
diff --git a/Chaos/Service/SeArray.hpp b/Chaos/Service/SeArray.hpp
index 280ae0d..be4932b 100644
--- a/Chaos/Service/SeArray.hpp
+++ b/Chaos/Service/SeArray.hpp
@@ -89,4 +89,4 @@ private:
 
 } // namespace Chaos::Service
 
-#endif
+#endif // CHAOS_SERVICE_SEARRAY_HPP