--- src/ZipStreamer.php.rpm	2016-01-08 12:15:06.445995538 +0100
+++ src/ZipStreamer.php	2016-01-08 12:15:32.810095324 +0100
@@ -668,7 +668,7 @@
   }
 
   public function update($data) {
-    return $this->peclDeflateStream->update($data);
+    return ($data ? $this->peclDeflateStream->update($data) : @$this->peclDeflateStream->update($data));
   }
 
   public function finish() {