diff --git a/trunk/src/or/buffers.c b/trunk/src/or/buffers.c
index c88fa62a11..b6faaa131b 100644
--- a/trunk/src/or/buffers.c
+++ b/trunk/src/or/buffers.c
@@ -194,7 +194,8 @@ int decompress_buf_to_buf(char **buf_in, int *buflen_in, int *buf_datalen_in,
     case Z_STREAM_END:
       log(LOG_DEBUG, "Uncompressed (%d/%d); filled (%d/%d)",
 	  *buf_datalen_in-zstream->avail_in, *buf_datalen_in,
-	  *buf_datalen_out-zstream->avail_out, *buf_datalen_out);
+	  (*buflen_out-*buf_datalen_out)-zstream->avail_out, 
+	  (*buflen_out-*buf_datalen_out) );
       memmove(*buf_in, zstream->next_in, zstream->avail_in);
       *buf_datalen_in = zstream->avail_in;
       *buf_datalen_out = *buflen_out - zstream->avail_out;