diff --git a/client/main.go b/client/main.go
index dc4cad9..fd35c2c 100644
--- a/client/main.go
+++ b/client/main.go
@@ -447,10 +447,10 @@ func scavenger(ch chan *smux.Session, ttl int) {
 			for k := range sessionList {
 				s := sessionList[k]
 				if s.session.NumStreams() == 0 || s.session.IsClosed() {
-					log.Println("session normally closed", sess.RemoteAddr())
+					log.Println("session normally closed", s.session.RemoteAddr())
 					s.session.Close()
 				} else if ttl >= 0 && time.Since(s.ts) >= time.Duration(ttl)*time.Second {
-					log.Println("session reached scavenge ttl", sess.RemoteAddr())
+					log.Println("session reached scavenge ttl", s.session.RemoteAddr())
 					s.session.Close()
 				} else {
 					newList = append(newList, sessionList[k])
diff --git a/go.mod b/go.mod
index 49ed75b..d278803 100644
--- a/go.mod
+++ b/go.mod
@@ -10,7 +10,7 @@ require (
 	github.com/tjfoc/gmsm v1.0.1 // indirect
 	github.com/urfave/cli v1.20.0
 	github.com/xtaci/kcp-go v5.3.8+incompatible
-	github.com/xtaci/smux v1.3.1
+	github.com/xtaci/smux v1.3.2
 	golang.org/x/crypto v0.0.0-20190513172903-22d7a77e9e5f
 	golang.org/x/net v0.0.0-20190509222800-a4d6f7feada5 // indirect
 	golang.org/x/sys v0.0.0-20190509141414-a5b02f93d862 // indirect
diff --git a/go.sum b/go.sum
index 9ebb8e7..5a8ec8f 100644
--- a/go.sum
+++ b/go.sum
@@ -80,6 +80,8 @@ github.com/xtaci/smux v1.2.12 h1:POGYLDuR61+XZlVzKUdI4fTLtJnyVba++XS4Q6T5e3M=
 github.com/xtaci/smux v1.2.12/go.mod h1:f+nYm6SpuHMy/SH0zpbvAFHT1QoMcgLOsWcFip5KfPw=
 github.com/xtaci/smux v1.3.1 h1:qMkK+dTu8ozfYz13UaX5q9GRIx0Qwux3FvcjtKZmDF8=
 github.com/xtaci/smux v1.3.1/go.mod h1:f+nYm6SpuHMy/SH0zpbvAFHT1QoMcgLOsWcFip5KfPw=
+github.com/xtaci/smux v1.3.2 h1:8NsGbxBW6oSaeLu5E6V8AmklZm6EhBz7BeCOU3Zdhwc=
+github.com/xtaci/smux v1.3.2/go.mod h1:f+nYm6SpuHMy/SH0zpbvAFHT1QoMcgLOsWcFip5KfPw=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20190320223903-b7391e95e576 h1:aUX/1G2gFSs4AsJJg2cL3HuoRhCSCz733FE5GUSuaT4=
 golang.org/x/crypto v0.0.0-20190320223903-b7391e95e576/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=