diff --git a/tools/run_tests/run_tests.py b/tools/run_tests/run_tests.py
index fa749498d2ff946615cb495f29dc3b46b34ca374..b93f584095349e6d13a7a58d111f07943a8f7db6 100755
--- a/tools/run_tests/run_tests.py
+++ b/tools/run_tests/run_tests.py
@@ -254,6 +254,7 @@ class CSharpLanguage(object):
   def test_specs(self, config, travis):
     assemblies = ['Grpc.Core.Tests',
                   'Grpc.Examples.Tests',
+                  'Grpc.HealthCheck.Tests',
                   'Grpc.IntegrationTesting']
     if self.platform == 'windows':
       cmd = 'tools\\run_tests\\run_csharp.bat'