diff --git a/KotlinCore/src/de/steamwar/kotlin/ui/UIInventory.kt b/KotlinCore/src/de/steamwar/kotlin/ui/UIInventory.kt
index c9412434..dba7178b 100644
--- a/KotlinCore/src/de/steamwar/kotlin/ui/UIInventory.kt
+++ b/KotlinCore/src/de/steamwar/kotlin/ui/UIInventory.kt
@@ -43,6 +43,8 @@ abstract class UIInventory(val player: Player): ObserverListener() {
         open()
     }
 
+    override fun update() = render()
+
     protected fun inventory(size: Int, title: String, init: WindowContext.() -> Unit) {
         window = UIWindow(size, title, player, init)
     }