diff --git a/stream/mts/encoder.go b/stream/mts/encoder.go
index 3e9359b9..719ccd86 100644
--- a/stream/mts/encoder.go
+++ b/stream/mts/encoder.go
@@ -36,11 +36,6 @@ import (
 	"bitbucket.org/ausocean/av/stream/mts/psi"
 )
 
-var (
-	patTable []byte
-	pmtTable []byte
-)
-
 const (
 	psiPacketSize = 184
 	psiSendCount  = 21
@@ -61,10 +56,10 @@ func SetLocation(g string) {
 	metaData.location = g
 }
 
-func init() {
+var (
 	patTable = psi.StdPat.Bytes()
 	pmtTable = psi.StdPmtTimeLocation.Bytes()
-}
+)
 
 const (
 	sdtPid   = 17