diff --git a/res/spritesheets.properties b/res/spritesheets.properties
index 8c9a585..83ef472 100644
--- a/res/spritesheets.properties
+++ b/res/spritesheets.properties
@@ -45,6 +45,7 @@ atcs.spritesheet.items_weapons.category=item
 atcs.spritesheet.items_weapons_2.category=item
 atcs.spritesheet.items_weapons_3.category=item
 
+atcs.spritesheet.monsters_antison.category=monster
 atcs.spritesheet.monsters_armor1.category=monster
 atcs.spritesheet.monsters_arulirs.category=monster
 
@@ -132,3 +133,4 @@ atcs.spritesheet.monsters_newb_3.sizey=64
 atcs.spritesheet.monsters_newb_4.category=monster
 atcs.spritesheet.monsters_newb_4.sizex=32
 atcs.spritesheet.monsters_newb_4.sizey=64
+atcs.spritesheet.monsters_1x2.category=monster