diff --git a/Gopkg.lock b/Gopkg.lock
index 07b31e6..6684973 100644
--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -170,15 +170,15 @@
   revision = "391d2c78c8404a9683d79f75dd24ab53040f89f7"
 
 [[projects]]
-  digest = "1:f6bc2d2f9c00737754ef87dba06c851458523fa382a61e1e2e5270c1f39a6622"
+  digest = "1:c2ba1c9dc003c15856e4529dac028cacba08ee8924300f058b3467cde9acf7a9"
   name = "github.com/problame/go-streamrpc"
   packages = [
     ".",
     "internal/pdu",
   ]
   pruneopts = ""
-  revision = "a67d93db93b3dc8c2d6901a1b2183ff42dea8f7d"
-  version = "v0.3"
+  revision = "de6f6a4041c77f700f02d8fe749e54efa50811f7"
+  version = "v0.4"
 
 [[projects]]
   branch = "master"
diff --git a/Gopkg.toml b/Gopkg.toml
index b08613e..fe541e1 100644
--- a/Gopkg.toml
+++ b/Gopkg.toml
@@ -69,4 +69,4 @@ ignored = [ "github.com/inconshreveable/mousetrap" ]
 
 [[constraint]]
   name = "github.com/problame/go-streamrpc"
-  version = "0.3.0"
+  version = "0.4.0"
diff --git a/config/config.go b/config/config.go
index 08262a9..d661d4a 100644
--- a/config/config.go
+++ b/config/config.go
@@ -130,6 +130,8 @@ type RPCConfig struct {
 	RxStructuredMaxLen  uint32        `yaml:"rx_structured_max,optional,default=16777216"`
 	RxStreamChunkMaxLen uint32        `yaml:"rx_stream_chunk_max,optional,default=16777216"`
 	RxHeaderMaxLen      uint32        `yaml:"rx_header_max,optional,default=40960"`
+	SendHeartbeatInterval             time.Duration `yaml:"send_heartbeat_interval,optional,positive,default=5s"`
+
 }
 
 type ConnectEnum struct {
diff --git a/config/config_rpc_test.go b/config/config_rpc_test.go
index e295752..f74581d 100644
--- a/config/config_rpc_test.go
+++ b/config/config_rpc_test.go
@@ -53,11 +53,24 @@ jobs:
     rpc:
       rx_structured_max: 0x2342
 
+- type: sink
+  name: "other_sink"
+  root_dataset: "pool2/backup_laptops"
+  serve:
+    type: tcp
+    listen: "192.168.122.189:8888"
+    clients: {
+	"10.23.42.23":"client1"
+    }
+    rpc:
+      send_heartbeat_interval: 10s
+
 `)
 
 	assert.Equal(t, 20*time.Second, conf.Jobs[0].Ret.(*PullJob).Connect.Ret.(*TCPConnect).RPC.Timeout)
 	assert.Equal(t, uint32(0xabcd), conf.Jobs[1].Ret.(*PullJob).Connect.Ret.(*TCPConnect).RPC.TxChunkSize)
 	assert.Equal(t, uint32(0x2342), conf.Jobs[2].Ret.(*SinkJob).Serve.Ret.(*TCPServe).RPC.RxStructuredMaxLen)
+	assert.Equal(t, 10*time.Second, conf.Jobs[3].Ret.(*SinkJob).Serve.Ret.(*TCPServe).RPC.SendHeartbeatInterval)
 	defConf := RPCConfig{}
 	Default(&defConf)
 	assert.Equal(t, defConf.Timeout, conf.Global.RPC.Timeout)
diff --git a/daemon/streamrpcconfig/streamrpcconfig.go b/daemon/streamrpcconfig/streamrpcconfig.go
index 8dc64f6..da28d5d 100644
--- a/daemon/streamrpcconfig/streamrpcconfig.go
+++ b/daemon/streamrpcconfig/streamrpcconfig.go
@@ -15,9 +15,8 @@ func FromDaemonConfig(g *config.Global, in *config.RPCConfig) (*streamrpc.ConnCo
 		RxStructuredMaxLen:   conf.RxStructuredMaxLen,
 		RxStreamMaxChunkSize: conf.RxStreamChunkMaxLen,
 		TxChunkSize:          conf.TxChunkSize,
-		Timeout: streamrpc.Timeout{
-			Progress: conf.Timeout,
-		},
+		Timeout: 			  conf.Timeout,
+		SendHeartbeatInterval: conf.SendHeartbeatInterval,
 	}
 	if err := srpcConf.Validate(); err != nil {
 		return nil, err