diff --git a/client/site_tests/platform_CryptohomeFio/platform_CryptohomeFio.py b/client/site_tests/platform_CryptohomeFio/platform_CryptohomeFio.py
index 6b35bdb..e3f86ca 100644
--- a/client/site_tests/platform_CryptohomeFio/platform_CryptohomeFio.py
+++ b/client/site_tests/platform_CryptohomeFio/platform_CryptohomeFio.py
@@ -77,6 +77,7 @@
                 results.update(fio_util.fio_runner(self, job_file, env_vars,
                     name_prefix=graph_descr + config))
                 self.write_perf_keyval(results)
+                utils.system("sync")
 
                 logging.info('Finished with FS stress, cleaning up.')
                 if config == self.USE_CRYPTO: