diff --git a/libtransmission/peer-io.c b/libtransmission/peer-io.c
index e9333333a..567a4c9a4 100644
--- a/libtransmission/peer-io.c
+++ b/libtransmission/peer-io.c
@@ -761,7 +761,7 @@ tr_peerIoTryRead( tr_peerIo * io, size_t howmuch )
 static int
 tr_peerIoTryWrite( tr_peerIo * io, size_t howmuch )
 {
-    int n;
+    int n = 0;
 
     if(( howmuch = tr_bandwidthClamp( &io->bandwidth, TR_UP, howmuch )))
     {