diff --git a/ci/build_test_suites_test.py b/ci/build_test_suites_test.py
index 2afaab7..c7cd4ab 100644
--- a/ci/build_test_suites_test.py
+++ b/ci/build_test_suites_test.py
@@ -37,6 +37,7 @@
 import ci_test_lib
 import optimized_targets
 from pyfakefs import fake_filesystem_unittest
+import metrics_agent
 
 
 class BuildTestSuitesTest(fake_filesystem_unittest.TestCase):
@@ -52,6 +53,10 @@
     self.addCleanup(subprocess_run_patcher.stop)
     self.mock_subprocess_run = subprocess_run_patcher.start()
 
+    metrics_agent_finalize_patcher = mock.patch('metrics_agent.MetricsAgent.end_reporting')
+    self.addCleanup(metrics_agent_finalize_patcher.stop)
+    self.mock_metrics_agent_end = metrics_agent_finalize_patcher.start()
+
     self._setup_working_build_env()
 
   def test_missing_target_release_env_var_raises(self):