diff --git a/Miscellaneous/web/http-request-headers/http-request-headers-fields-large.txt b/Miscellaneous/web/http-request-headers/http-request-headers-fields-large.txt
index ab94c153..1ff0cda1 100644
--- a/Miscellaneous/web/http-request-headers/http-request-headers-fields-large.txt
+++ b/Miscellaneous/web/http-request-headers/http-request-headers-fields-large.txt
@@ -1072,6 +1072,7 @@ X-Tine20-Jsonkey
 X-Tine20-Request-Type
 X-Tomboy-Client
 X-Tor
+X-Trace
 X-Twilio-Signature
 X-Ua-Device
 X-Ucbrowser-Device-Ua