diff --git a/build.properties b/build.properties
index f3694c48e..b70843bac 100644
--- a/build.properties
+++ b/build.properties
@@ -1,7 +1,7 @@
 minecraft.version=1.7.10
 forge.version=10.13.4.1614-1.7.10
 
-oc.version=1.7.5.7-GTNH
+oc.version=1.7.5.8-GTNH
 
 ae2.version=rv2-beta-26
 bc.version=7.0.9
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 bfaa04f3a..c41389852 100644
--- a/src/main/scala/li/cil/oc/integration/appeng/NetworkControl.scala
+++ b/src/main/scala/li/cil/oc/integration/appeng/NetworkControl.scala
@@ -393,7 +393,7 @@ object NetworkControl {
       val hash = result(0)
       // it would have been nice to put these fields in a registry convert
       // but the potential ae item needs the tile and position data
-      hash.update("size", Int.box(aeItem.getStackSize.toInt))
+      hash.update("size", Long.box(aeItem.getStackSize))
       hash.update("isCraftable", Boolean.box(aeItem.isCraftable))
       return hash
     }