diff --git a/audio-linux.go b/audio-linux.go
index 2ead192..b4c4a34 100644
--- a/audio-linux.go
+++ b/audio-linux.go
@@ -168,6 +168,16 @@ func (a *audioStruct) init(devName string) error {
 	a.source.SetProperty("device.buffering.buffer_size", (audioSampleRate*16)/10) // 100 ms
 	a.source.SetProperty("device.description", "kappanhang: "+devName)
 
+	// Cleanup previous pipes.
+	sources, err := papipes.GetActiveSources()
+	if err == nil {
+		for _, i := range sources {
+			if i.Filename == a.source.Filename {
+				i.Close()
+			}
+		}
+	}
+
 	a.sink.Name = "kappanhang-" + devName
 	a.sink.Filename = "/tmp/kappanhang-" + devName + ".sink"
 	a.sink.Rate = audioSampleRate
@@ -177,6 +187,16 @@ func (a *audioStruct) init(devName string) error {
 	a.sink.SetProperty("device.buffering.buffer_size", (audioSampleRate*16)/10)
 	a.sink.SetProperty("device.description", "kappanhang: "+devName)
 
+	// Cleanup previous pipes.
+	sinks, err := papipes.GetActiveSinks()
+	if err != nil {
+		for _, i := range sinks {
+			if i.Filename == a.source.Filename {
+				i.Close()
+			}
+		}
+	}
+
 	if err := a.source.Open(); err != nil {
 		return err
 	}
diff --git a/go.mod b/go.mod
index 8f8fe4b..7d4fd54 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/nonoo/kappanhang
 go 1.14
 
 require (
-	github.com/akosmarton/papipes v0.0.0-20201020060136-a13951732479
+	github.com/akosmarton/papipes v0.0.0-20201027113853-3c63b4919c76
 	github.com/google/goterm v0.0.0-20200907032337-555d40f16ae2
 	github.com/pborman/getopt v1.1.0
 	go.uber.org/multierr v1.6.0 // indirect
diff --git a/go.sum b/go.sum
index a562e3f..e94c122 100644
--- a/go.sum
+++ b/go.sum
@@ -1,7 +1,7 @@
 github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/akosmarton/papipes v0.0.0-20201020060136-a13951732479 h1:YUUKO1V9gTQWqqKc7pOJdmeXwmdeVodiOjR2tkPoSkM=
-github.com/akosmarton/papipes v0.0.0-20201020060136-a13951732479/go.mod h1:mdvQ399enti+OdGDfk21dAR0/nkd9oUak/wiEbwowtc=
+github.com/akosmarton/papipes v0.0.0-20201027113853-3c63b4919c76 h1:JxmEAp9MVbC4up4TAt6UXEPzfb+S90Uji1SKehF3B00=
+github.com/akosmarton/papipes v0.0.0-20201027113853-3c63b4919c76/go.mod h1:mdvQ399enti+OdGDfk21dAR0/nkd9oUak/wiEbwowtc=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=