diff --git a/Spaceinator.project.gmx b/Spaceinator.project.gmx
index 932f6a2..d58eca4 100644
--- a/Spaceinator.project.gmx
+++ b/Spaceinator.project.gmx
@@ -35,6 +35,7 @@
     <script>scripts\save_game_data.gml</script>
     <script>scripts\pull_towards_black_holes.gml</script>
     <script>scripts\add_item_to_inventory.gml</script>
+    <script>scripts\use_item_in_inventory.gml</script>
   </scripts>
   <objects name="objects">
     <objects name="natural generation">
@@ -58,7 +59,7 @@
     </objects>
     <objects name="items">
       <object>objects\obj_dropped_item</object>
-      <object>objects\obj_dropped_stone</object>
+      <object>objects\obj_placed_item</object>
     </objects>
   </objects>
   <rooms name="rooms">
diff --git a/scripts/use_item_in_inventory.gml b/scripts/use_item_in_inventory.gml
index 82e9bc2..6fecaf5 100644
--- a/scripts/use_item_in_inventory.gml
+++ b/scripts/use_item_in_inventory.gml
@@ -1,12 +1,12 @@
 ///use_item_in_inventory(slot)
 
 var slotno = argument0;
-var count = obj_inv_controller.inventoryCount[slot];
+var count = obj_inv_controller.inventoryCount[slotno];
 count--;
-obj_inv_controller.inventoryCount[slot] = count;
+obj_inv_controller.inventoryCount[slotno] = count;
 if(count <= 0)
 {
-    obj_inv_controller.inventory[slot] = 0;   
-    obj_inv_controller.inventoryCount[slot] = 0;   
+    obj_inv_controller.inventory[slotno] = 0;   
+    obj_inv_controller.inventoryCount[slotno] = 0;   
 }