diff --git a/src/MyCSharp.HttpUserAgentParser/HttpUserAgentPlatformType.cs b/src/MyCSharp.HttpUserAgentParser/HttpUserAgentPlatformType.cs
index 42deba8..de57827 100644
--- a/src/MyCSharp.HttpUserAgentParser/HttpUserAgentPlatformType.cs
+++ b/src/MyCSharp.HttpUserAgentParser/HttpUserAgentPlatformType.cs
@@ -46,5 +46,9 @@ public enum HttpUserAgentPlatformType : byte
     /// <summary>
     /// Symbian
     /// </summary>
-    Symbian
+    Symbian,
+    /// <summary>
+    /// ChromeOS
+    /// </summary>
+    ChromeOS
 }
diff --git a/src/MyCSharp.HttpUserAgentParser/HttpUserAgentStatics.cs b/src/MyCSharp.HttpUserAgentParser/HttpUserAgentStatics.cs
index 7cb95d7..38339c2 100644
--- a/src/MyCSharp.HttpUserAgentParser/HttpUserAgentStatics.cs
+++ b/src/MyCSharp.HttpUserAgentParser/HttpUserAgentStatics.cs
@@ -47,6 +47,7 @@ public static class HttpUserAgentStatics
         new(CreateDefaultPlatformRegex("iphone"), "iOS", HttpUserAgentPlatformType.IOS),
         new(CreateDefaultPlatformRegex("ipad"), "iOS", HttpUserAgentPlatformType.IOS),
         new(CreateDefaultPlatformRegex("ipod"), "iOS", HttpUserAgentPlatformType.IOS),
+        new(CreateDefaultPlatformRegex("cros"), "ChromeOS", HttpUserAgentPlatformType.ChromeOS),
         new(CreateDefaultPlatformRegex("os x"), "Mac OS X", HttpUserAgentPlatformType.MacOS),
         new(CreateDefaultPlatformRegex("ppc mac"), "Power PC Mac", HttpUserAgentPlatformType.MacOS),
         new(CreateDefaultPlatformRegex("freebsd"), "FreeBSD", HttpUserAgentPlatformType.Linux),
diff --git a/tests/MyCSharp.HttpUserAgentParser.UnitTests/HttpUserAgentParserTests.cs b/tests/MyCSharp.HttpUserAgentParser.UnitTests/HttpUserAgentParserTests.cs
index 73b0a39..ffd2bf3 100644
--- a/tests/MyCSharp.HttpUserAgentParser.UnitTests/HttpUserAgentParserTests.cs
+++ b/tests/MyCSharp.HttpUserAgentParser.UnitTests/HttpUserAgentParserTests.cs
@@ -31,6 +31,7 @@ public class HttpUserAgentParserTests
     [InlineData("Mozilla/5.0 (Linux; Android 10) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.210 Mobile Safari/537.36", "Chrome", "90.0.4430.210", "Android", HttpUserAgentPlatformType.Android, "Android")]
     [InlineData("Mozilla/5.0 (Linux; Android 10; SM-A205U) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.210 Mobile Safari/537.36", "Chrome", "90.0.4430.210", "Android", HttpUserAgentPlatformType.Android, "Android")]
     [InlineData("Mozilla/5.0 (Linux; Android 10; LM-Q720) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.210 Mobile Safari/537.36", "Chrome", "90.0.4430.210", "Android", HttpUserAgentPlatformType.Android, "Android")]
+    [InlineData("Mozilla/5.0 (X11; CrOS x86_64 15917.71.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.6533.132 Safari/537.36", "Chrome", "127.0.6533.132", "ChromeOS", HttpUserAgentPlatformType.ChromeOS, null)]
     // Safari
     [InlineData("Mozilla/5.0 (Windows; U; Windows NT 10.0; en-US) AppleWebKit/603.1.30 (KHTML, like Gecko) Version/11.0 Safari/605.1.15", "Safari", "11.0", "Windows 10", HttpUserAgentPlatformType.Windows, null)]
     [InlineData("Mozilla/5.0 (Macintosh; Intel Mac OS X 11_3_1) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.1 Safari/605.1.15", "Safari", "14.1", "Mac OS X", HttpUserAgentPlatformType.MacOS, null)]