diff --git a/derp/derp_server.go b/derp/derp_server.go
index 12eb01240..d3d1251ff 100644
--- a/derp/derp_server.go
+++ b/derp/derp_server.go
@@ -4,7 +4,6 @@
 
 package derp
 
-// TODO(crawshaw): send srcKey with packets to clients?
 // TODO(crawshaw): with predefined serverKey in clients and HMAC on packets we could skip TLS
 
 import (