diff --git a/apps/sam/java/src/net/i2p/sam/SAMv1Handler.java b/apps/sam/java/src/net/i2p/sam/SAMv1Handler.java
index 6a57c73ea..9313f581f 100644
--- a/apps/sam/java/src/net/i2p/sam/SAMv1Handler.java
+++ b/apps/sam/java/src/net/i2p/sam/SAMv1Handler.java
@@ -758,7 +758,7 @@ public class SAMv1Handler extends SAMHandler implements SAMRawReceiver, SAMDatag
 
         msg.write(("STREAM RECEIVED ID=" + id 
                    +" SIZE=" + len + "\n").getBytes("ISO-8859-1"));
-        msg.write(data);
+        msg.write(data, 0, len);
 
         writeBytes(msg.toByteArray());
     }