diff --git a/src/libraries/System.Net.NameResolution/tests/FunctionalTests/GetHostAddressesTest.cs b/src/libraries/System.Net.NameResolution/tests/FunctionalTests/GetHostAddressesTest.cs
index d1073db5d3986..c27d3d0c403f8 100644
--- a/src/libraries/System.Net.NameResolution/tests/FunctionalTests/GetHostAddressesTest.cs
+++ b/src/libraries/System.Net.NameResolution/tests/FunctionalTests/GetHostAddressesTest.cs
@@ -4,6 +4,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Net.Sockets;
+using System.Runtime.InteropServices;
 using System.Threading;
 using System.Threading.Tasks;
 
@@ -13,6 +14,20 @@ namespace System.Net.NameResolution.Tests
 {
     public class GetHostAddressesTest
     {
+        [Fact]
+        public void TestLocalhostAddresses()
+        {
+            if (!RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+            {
+                IPAddress[] addresses = Dns.GetHostAddresses("localhost");
+                if (addresses.Length > 1)
+                {
+                    string localhostResolvesTo = string.Join(',', addresses.Select(a => a.ToString()));
+                    throw new Exception(localhostResolvesTo);
+                }
+            }
+        }
+
         [Fact]
         public Task Dns_GetHostAddressesAsync_HostString_Ok() => TestGetHostAddressesAsync(() => Dns.GetHostAddressesAsync(TestSettings.LocalHost));