diff --git a/sdk/core/Microsoft.ClientModel.TestFramework/tests/TestUtilities/MockPipelineTransportTests.cs b/sdk/core/Microsoft.ClientModel.TestFramework/tests/TestUtilities/MockPipelineTransportTests.cs
index 5a26bdb1d88a..846281d9efa5 100644
--- a/sdk/core/Microsoft.ClientModel.TestFramework/tests/TestUtilities/MockPipelineTransportTests.cs
+++ b/sdk/core/Microsoft.ClientModel.TestFramework/tests/TestUtilities/MockPipelineTransportTests.cs
@@ -4,6 +4,7 @@
 using Microsoft.ClientModel.TestFramework.Mocks;
 using NUnit.Framework;
 using System;
+using System.ClientModel.Primitives;
 using System.Diagnostics;
 using System.Threading.Tasks;
 
@@ -342,6 +343,7 @@ private class NonMockPipelineMessage : System.ClientModel.Primitives.PipelineMes
     {
         public NonMockPipelineMessage() : base(new MockPipelineRequest())
         {
+            NetworkTimeout ??= TimeSpan.FromSeconds(100);
         }
     }
 }