diff --git a/src/core/ext/filters/client_channel/backup_poller.cc b/src/core/ext/filters/client_channel/backup_poller.cc
index 466bf86bc00..c3795c35c1f 100644
--- a/src/core/ext/filters/client_channel/backup_poller.cc
+++ b/src/core/ext/filters/client_channel/backup_poller.cc
@@ -143,9 +143,16 @@ void grpc_client_channel_start_backup_polling(
                     grpc_exec_ctx_now(exec_ctx) + g_poll_interval_ms,
                     &g_poller->run_poller_closure);
   }
+
   gpr_ref(&g_poller->refs);
+  /* Get a reference to g_poller->pollset before releasing g_poller_mu to make
+   * TSAN happy. Otherwise, reading from g_poller (i.e g_poller->pollset) after
+   * releasing the lock and setting g_poller to NULL in g_poller_unref() is
+   * being flagged as a data-race by TSAN */
+  grpc_pollset* pollset = g_poller->pollset;
   gpr_mu_unlock(&g_poller_mu);
-  grpc_pollset_set_add_pollset(exec_ctx, interested_parties, g_poller->pollset);
+
+  grpc_pollset_set_add_pollset(exec_ctx, interested_parties, pollset);
 }
 
 void grpc_client_channel_stop_backup_polling(