diff --git a/stream_info/AudioStream.java b/stream_info/AudioStream.java
index 98eb17620..b476cad67 100644
--- a/stream_info/AudioStream.java
+++ b/stream_info/AudioStream.java
@@ -1,5 +1,7 @@
package org.schabi.newpipe.extractor.stream_info;
+import java.io.Serializable;
+
/**
* Created by Christian Schabesberger on 04.03.16.
*
@@ -20,7 +22,7 @@ package org.schabi.newpipe.extractor.stream_info;
* along with NewPipe. If not, see .
*/
-public class AudioStream {
+public class AudioStream implements Serializable{
public String url = "";
public int format = -1;
public int bandwidth = -1;
diff --git a/stream_info/VideoStream.java b/stream_info/VideoStream.java
index c3e12fdbd..978773574 100644
--- a/stream_info/VideoStream.java
+++ b/stream_info/VideoStream.java
@@ -1,5 +1,7 @@
package org.schabi.newpipe.extractor.stream_info;
+import java.io.Serializable;
+
/**
* Created by Christian Schabesberger on 04.03.16.
*
@@ -20,7 +22,7 @@ package org.schabi.newpipe.extractor.stream_info;
* along with NewPipe. If not, see .
*/
-public class VideoStream {
+public class VideoStream implements Serializable{
//url of the stream
public String url = "";
public int format = -1;