diff --git a/src/main/java/de/studiocode/invgui/InvGui.java b/src/main/java/de/studiocode/invgui/InvGui.java
index 82c2574..2dad311 100644
--- a/src/main/java/de/studiocode/invgui/InvGui.java
+++ b/src/main/java/de/studiocode/invgui/InvGui.java
@@ -1,31 +1,32 @@
 package de.studiocode.invgui;
 
+import de.studiocode.invgui.util.reflection.ReflectionUtils;
 import org.bukkit.plugin.Plugin;
 
 import java.util.ArrayList;
 import java.util.List;
 
+import static de.studiocode.invgui.util.reflection.ReflectionRegistry.PLUGIN_CLASS_LOADER_PLUGIN_FIELD;
+
 public class InvGui {
     
     private static InvGui instance;
     
     private final List<Runnable> disableHandlers = new ArrayList<>();
-    private Plugin plugin;
+    private final Plugin plugin;
+    
+    public InvGui() {
+        this.plugin = ReflectionUtils.getFieldValue(PLUGIN_CLASS_LOADER_PLUGIN_FIELD, getClass().getClassLoader());
+    }
     
     public static InvGui getInstance() {
         return instance == null ? instance = new InvGui() : instance;
     }
     
     public Plugin getPlugin() {
-        if (plugin == null)
-            throw new IllegalStateException("Please set your plugin using InvGui.getInstance().setPlugin");
         return plugin;
     }
     
-    public void setPlugin(Plugin plugin) {
-        this.plugin = plugin;
-    }
-    
     public void addDisableHandler(Runnable runnable) {
         disableHandlers.add(runnable);
     }
diff --git a/src/main/java/de/studiocode/invgui/util/reflection/ReflectionRegistry.java b/src/main/java/de/studiocode/invgui/util/reflection/ReflectionRegistry.java
index 0bdae0c..87970a6 100644
--- a/src/main/java/de/studiocode/invgui/util/reflection/ReflectionRegistry.java
+++ b/src/main/java/de/studiocode/invgui/util/reflection/ReflectionRegistry.java
@@ -2,18 +2,20 @@ package de.studiocode.invgui.util.reflection;
 
 import java.lang.reflect.Field;
 
-import static de.studiocode.invgui.util.reflection.ReflectionUtils.getCBClass;
-import static de.studiocode.invgui.util.reflection.ReflectionUtils.getField;
+import static de.studiocode.invgui.util.reflection.ReflectionUtils.*;
 
 public class ReflectionRegistry {
     
     public static final String NET_MINECRAFT_SERVER_PACKAGE_PATH = ReflectionUtils.getNMS();
     public static final String CRAFT_BUKKIT_PACKAGE_PATH = ReflectionUtils.getCB();
+    public static final String BUKKIT_PACKAGE_PATH = "org.bukkit.";
     
     // Classes
     public static final Class<?> CB_CRAFT_META_SKULL_CLASS = getCBClass("inventory.CraftMetaSkull");
+    public static final Class<?> PLUGIN_CLASS_LOADER_CLASS = getBukkitClass("plugin.java.PluginClassLoader");
     
     // Fields
     public static final Field CB_CRAFT_META_SKULL_PROFILE_FIELD = getField(CB_CRAFT_META_SKULL_CLASS, true, "profile");
-
+    public static final Field PLUGIN_CLASS_LOADER_PLUGIN_FIELD = getField(PLUGIN_CLASS_LOADER_CLASS, true, "plugin");
+    
 }
diff --git a/src/main/java/de/studiocode/invgui/util/reflection/ReflectionUtils.java b/src/main/java/de/studiocode/invgui/util/reflection/ReflectionUtils.java
index 0e5d725..01d1522 100644
--- a/src/main/java/de/studiocode/invgui/util/reflection/ReflectionUtils.java
+++ b/src/main/java/de/studiocode/invgui/util/reflection/ReflectionUtils.java
@@ -6,8 +6,7 @@ import java.lang.reflect.Constructor;
 import java.lang.reflect.Field;
 import java.lang.reflect.Method;
 
-import static de.studiocode.invgui.util.reflection.ReflectionRegistry.CRAFT_BUKKIT_PACKAGE_PATH;
-import static de.studiocode.invgui.util.reflection.ReflectionRegistry.NET_MINECRAFT_SERVER_PACKAGE_PATH;
+import static de.studiocode.invgui.util.reflection.ReflectionRegistry.*;
 
 public class ReflectionUtils {
     
@@ -23,6 +22,16 @@ public class ReflectionUtils {
         return "net.minecraft.server." + version + ".";
     }
     
+    public static Class<?> getBukkitClass(String path) {
+        try {
+            return Class.forName(BUKKIT_PACKAGE_PATH + path);
+        } catch (ClassNotFoundException e) {
+            e.printStackTrace();
+        }
+        
+        return null;
+    }
+    
     public static Class<?> getNMSClass(String path) {
         try {
             return Class.forName(NET_MINECRAFT_SERVER_PACKAGE_PATH + path);
@@ -83,4 +92,15 @@ public class ReflectionUtils {
         }
     }
     
+    @SuppressWarnings("unchecked")
+    public static <T> T getFieldValue(Field field, Object obj) {
+        try {
+            return (T) field.get(obj);
+        } catch (IllegalAccessException e) {
+            e.printStackTrace();
+        }
+        
+        return null;
+    }
+    
 }