diff --git a/core/src/io/anuke/mindustry/plugin/Plugin.java b/core/src/io/anuke/mindustry/plugin/Plugin.java
index d3f4da04da..ffc8c9f8b7 100644
--- a/core/src/io/anuke/mindustry/plugin/Plugin.java
+++ b/core/src/io/anuke/mindustry/plugin/Plugin.java
@@ -2,6 +2,7 @@ package io.anuke.mindustry.plugin;
 
 import io.anuke.mindustry.mod.*;
 
+/** Defines a special type of mod that is always hidden. */
 public abstract class Plugin extends Mod{
 
 }