diff --git a/PInvoke/Ws2_32/WinSock2.cs b/PInvoke/Ws2_32/WinSock2.cs
index 193f1de0..4bebeb69 100644
--- a/PInvoke/Ws2_32/WinSock2.cs
+++ b/PInvoke/Ws2_32/WinSock2.cs
@@ -1405,11 +1405,11 @@ namespace Vanara.PInvoke
 			private ulong lower;
 			private ulong upper;
 
-			/// <summary>The IPv6 standard loopback address.</summary>
-			public static readonly IN6_ADDR Loopback = new IN6_ADDR { lower = 0xff_01_00_00_00_00_00_00, upper = 0x00_00_00_00_00_00_00_01 };
+			/// <summary>The IPv6 standard loopback address (<c>IN6ADDR_LOOPBACK_INIT</c>).</summary>
+			public static readonly IN6_ADDR Loopback = new(new byte[] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 });
 
-			/// <summary>The IPv6 standard unspecified address.</summary>
-			public static readonly IN6_ADDR Unspecified = new IN6_ADDR { lower = 0, upper = 0 };
+			/// <summary>The IPv6 standard unspecified address (<c>IN6ADDR_ANY_INIT</c>).</summary>
+			public static readonly IN6_ADDR Unspecified = new();
 
 			/// <summary>Initializes a new instance of the <see cref="IN6_ADDR"/> struct.</summary>
 			/// <param name="v6addr">The IPv6 address as an array of bytes.</param>
diff --git a/UnitTests/PInvoke/Ws2_32/Ws2tcpipTests.cs b/UnitTests/PInvoke/Ws2_32/Ws2tcpipTests.cs
index ebecb6e9..0447421b 100644
--- a/UnitTests/PInvoke/Ws2_32/Ws2tcpipTests.cs
+++ b/UnitTests/PInvoke/Ws2_32/Ws2tcpipTests.cs
@@ -20,6 +20,13 @@ namespace Vanara.PInvoke.Tests
 
 		public static IPAddress localIP4 => Dns.GetHostEntry(Dns.GetHostName()).AddressList.FirstOrDefault(ip => ip.AddressFamily == AddressFamily.InterNetwork);
 
+		[Test]
+		public void ConstTest()
+		{
+			Assert.That(new IPAddress(IN6_ADDR.Unspecified).ToString(), Is.EqualTo("::"));
+			Assert.That(new IPAddress(IN6_ADDR.Loopback).ToString(), Is.EqualTo("::1"));
+		}
+
 		[Test]
 		public void gai_strerrorTest()
 		{