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 d1657eb..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
@@ -9,6 +9,9 @@ interface ExternGuiTester {
     fun getContainerClass(inventory: InventoryView): Class<Any>?
 
     fun testIfGui(inventory: InventoryView): Boolean {
+        // this mean we are on test
+        if(inventory.javaClass.name.endsWith("AnvilViewMock")) return false
+
         val clazz = getContainerClass(inventory) ?: return false
 
         val clazzName = clazz.name