diff --git a/items/tools/ToolNetworkTool.java b/items/tools/ToolNetworkTool.java
index e3f5d5f9..aff4752f 100644
--- a/items/tools/ToolNetworkTool.java
+++ b/items/tools/ToolNetworkTool.java
@@ -28,6 +28,7 @@ public class ToolNetworkTool extends AEBaseItem implements IGuiItem, IAEWrench,
 	public ToolNetworkTool() {
 		super( ToolNetworkTool.class, null );
 		setfeature( EnumSet.of( AEFeature.NetworkTool ) );
+		setMaxStackSize( 1 );
 	}
 
 	@Override