diff --git a/src/main/scala/li/cil/oc/integration/appeng/NetworkControl.scala b/src/main/scala/li/cil/oc/integration/appeng/NetworkControl.scala
index 98922e55a..9fe7cb6e6 100644
--- a/src/main/scala/li/cil/oc/integration/appeng/NetworkControl.scala
+++ b/src/main/scala/li/cil/oc/integration/appeng/NetworkControl.scala
@@ -101,7 +101,7 @@ trait NetworkControl[AETile >: Null <: TileEntity with IGridProxyable with IActi
       case (key: String, value: AnyRef) => (key, value)
     }
     result(allCraftables
-      .collect{ case aeCraftItem if matches(convert(aeCraftItem), filter) => new NetworkControl.Craftable(tile, aeCraftItem) }
+      .collect{ case aeCraftItem if filter.isEmpty || matches(convert(aeCraftItem), filter) => new NetworkControl.Craftable(tile, aeCraftItem) }
       .toArray)
   }