diff --git a/src/main/java/net/schmizz/sshj/connection/channel/ChannelOutputStream.java b/src/main/java/net/schmizz/sshj/connection/channel/ChannelOutputStream.java
index a6e4dc6f..04071cdc 100644
--- a/src/main/java/net/schmizz/sshj/connection/channel/ChannelOutputStream.java
+++ b/src/main/java/net/schmizz/sshj/connection/channel/ChannelOutputStream.java
@@ -87,7 +87,7 @@ public final class ChannelOutputStream
                 flush(bufferSize);
                 return 0;
             } else {
-                final int n = Math.min(len - off, win.getMaxPacketSize() - bufferSize);
+                final int n = Math.min(len, win.getMaxPacketSize() - bufferSize);
                 packet.putRawBytes(data, off, n);
                 return n;
             }
@@ -214,4 +214,4 @@ public final class ChannelOutputStream
         return "< ChannelOutputStream for Channel #" + chan.getID() + " >";
     }
 
-}
\ No newline at end of file
+}