diff --git a/mobile/test/performance/files_em_does_not_use b/mobile/test/performance/files_em_does_not_use
index 5d9be3672ef2..16c1f69644f8 100644
--- a/mobile/test/performance/files_em_does_not_use
+++ b/mobile/test/performance/files_em_does_not_use
@@ -20,3 +20,4 @@ source/common/tls/ocsp/ocsp.h
 source/common/formatter/http_specific_formatter.h
 source/common/formatter/stream_info_formatter.h
 source/common/tls/default_tls_certificate_selector.h
+source/common/json/json_streamer.h