diff --git a/nms/nms-common/src/main/kotlin/xyz/alexcrea/cuanvil/dependency/gui/ExternGuiTester.kt b/nms/nms-common/src/main/kotlin/xyz/alexcrea/cuanvil/dependency/gui/ExternGuiTester.kt
index 3e11a43..9cb481e 100644
--- a/nms/nms-common/src/main/kotlin/xyz/alexcrea/cuanvil/dependency/gui/ExternGuiTester.kt
+++ b/nms/nms-common/src/main/kotlin/xyz/alexcrea/cuanvil/dependency/gui/ExternGuiTester.kt
@@ -9,15 +9,32 @@ interface ExternGuiTester {
     fun getContainerClass(inventory: InventoryView): Class<Any>?
 
     fun testIfGui(inventory: InventoryView): Boolean {
-        val clazz = getContainerClass(inventory)
-        if(clazz == null) return false
+        // this mean we are on test
+        if(inventory.javaClass.name.endsWith("AnvilViewMock")) return false
 
-        val expectedWesjdGuiPath = "anvilgui.version.$wesjdAnvilGuiName"
+        val clazz = getContainerClass(inventory) ?: return false
 
         val clazzName = clazz.name
-        val isWejdsGui = clazzName.contains(expectedWesjdGuiPath)
+        if (expectWesjd(clazzName)) return true
+        if (expectXenondevUI(clazzName)) return true
 
-        return isWejdsGui
+        return false
+    }
+
+    fun expectWesjd(name: String): Boolean {
+        val expectedWesjdGuiPath = "anvilgui.version.$wesjdAnvilGuiName"
+
+        return name.contains(expectedWesjdGuiPath)
+    }
+
+    private val XenondevUIPrefix: String
+        get() = "xyz.xenondevs.inventoryaccess."
+    private val XenondevUISufix: String
+        get() = ".AnvilInventoryImpl"
+
+    fun expectXenondevUI(name: String): Boolean {
+        return name.startsWith(XenondevUIPrefix)
+                && name.endsWith(XenondevUISufix)
     }