diff --git a/constants.go b/constants.go
index ff32f2a..481f697 100644
--- a/constants.go
+++ b/constants.go
@@ -1,9 +1,8 @@
 package container
 
 const (
-	CONTAINER_CRAWLERS         = "CONTAINER_CRAWLERS"
-	CONTAINER_RPC_CLIENT_CODEC = "CONTAINER_RPC_CLIENT_CODEC"
-	CONTAINER_RPC_WRITE_CHAN   = "CONTAINER_RPC_WRITE_CHAN"
+	CONTAINER_CRAWLERS       = "CONTAINER_CRAWLERS"
+	CONTAINER_RPC_WRITE_CHAN = "CONTAINER_RPC_WRITE_CHAN"
 )
 
 type RPCNotification struct {