diff --git a/src/libraries/System.Net.WebSockets.Client/tests/CancelTest.cs b/src/libraries/System.Net.WebSockets.Client/tests/CancelTest.cs
index 9e400c3f723a92..752ca8ece81897 100644
--- a/src/libraries/System.Net.WebSockets.Client/tests/CancelTest.cs
+++ b/src/libraries/System.Net.WebSockets.Client/tests/CancelTest.cs
@@ -22,7 +22,7 @@ public async Task ConnectAsync_Cancel_ThrowsCancellationException(Uri server)
                 var cts = new CancellationTokenSource(100);
 
                 var ub = new UriBuilder(server);
-                ub.Query = "delay20sec";
+                ub.Query = PlatformDetection.IsBrowser ? "delay20sec" : "delay10sec";
 
                 var ex = await Assert.ThrowsAnyAsync<OperationCanceledException>(() => cws.ConnectAsync(ub.Uri, cts.Token));
                 Assert.True(WebSocketState.Closed == cws.State, $"Actual {cws.State} when {ex}");