diff --git a/src/libraries/System.Net.Http/src/System/Net/Http/SocketsHttpHandler/SocketsHttpHandler.cs b/src/libraries/System.Net.Http/src/System/Net/Http/SocketsHttpHandler/SocketsHttpHandler.cs
index 44acad742e7..172bca3be17 100644
--- a/src/libraries/System.Net.Http/src/System/Net/Http/SocketsHttpHandler/SocketsHttpHandler.cs
+++ b/src/libraries/System.Net.Http/src/System/Net/Http/SocketsHttpHandler/SocketsHttpHandler.cs
@@ -36,7 +36,7 @@ private void CheckDisposedOrStarted()
         /// Gets a value that indicates whether the handler is supported on the current platform.
         /// </summary>
         [UnsupportedOSPlatformGuard("browser")]
-        public static bool IsSupported => !OperatingSystem.IsBrowser();
+        public static bool IsSupported => !(OperatingSystem.IsBrowser() || OperatingSystem.IsWasi());
 
         public bool UseCookies
         {