diff --git a/tests/gamma/csm_observability_with_injection_test.py b/tests/gamma/csm_observability_with_injection_test.py
index 08874232..18fdce44 100644
--- a/tests/gamma/csm_observability_with_injection_test.py
+++ b/tests/gamma/csm_observability_with_injection_test.py
@@ -169,7 +169,7 @@ def close(self):
         self.log_stream.close()
 
 
-class CsmObservabilityTestWithInjection(
+class CsmObservabilityTestWithInjectionTest(
     xds_gamma_testcase.GammaXdsKubernetesTestCase
 ):
     metric_client: monitoring_v3.MetricServiceClient