diff --git a/src/main/kotlin/net/axay/kspigot/inventory/elements/InventoryGUISpaceCompound.kt b/src/main/kotlin/net/axay/kspigot/inventory/elements/InventoryGUISpaceCompound.kt
index efa3e645..a9d736b2 100644
--- a/src/main/kotlin/net/axay/kspigot/inventory/elements/InventoryGUISpaceCompound.kt
+++ b/src/main/kotlin/net/axay/kspigot/inventory/elements/InventoryGUISpaceCompound.kt
@@ -6,7 +6,7 @@ import net.axay.kspigot.inventory.*
 import org.bukkit.Material
 import org.bukkit.inventory.ItemStack
 
-class InventoryGUISpaceCompoundElement<T : ForInventory, E>(
+class InventoryGUISpaceCompoundElement<T : ForInventory, E> internal constructor(
     private val compound: InventoryGUISpaceCompound<T, E>
 ) : InventoryGUIElement<T>() {