diff --git a/src/com/shatteredpixel/shatteredpixeldungeon/items/artifacts/CloakOfShadows.java b/src/com/shatteredpixel/shatteredpixeldungeon/items/artifacts/CloakOfShadows.java
index 8b7c56527..c07d12da2 100644
--- a/src/com/shatteredpixel/shatteredpixeldungeon/items/artifacts/CloakOfShadows.java
+++ b/src/com/shatteredpixel/shatteredpixeldungeon/items/artifacts/CloakOfShadows.java
@@ -37,6 +37,7 @@ public class CloakOfShadows extends Artifact {
 
         defaultAction = AC_STEALTH;
 
+        unique = true;
         bones = false;
     }
 
diff --git a/src/com/shatteredpixel/shatteredpixeldungeon/items/weapon/melee/MagesStaff.java b/src/com/shatteredpixel/shatteredpixeldungeon/items/weapon/melee/MagesStaff.java
index c12273e6b..414e84e71 100644
--- a/src/com/shatteredpixel/shatteredpixeldungeon/items/weapon/melee/MagesStaff.java
+++ b/src/com/shatteredpixel/shatteredpixeldungeon/items/weapon/melee/MagesStaff.java
@@ -39,6 +39,7 @@ public class MagesStaff extends MeleeWeapon {
 
 		defaultAction = AC_ZAP;
 
+		unique = true;
 		bones = false;
 	}
 
diff --git a/src/com/shatteredpixel/shatteredpixeldungeon/items/weapon/melee/ShortSword.java b/src/com/shatteredpixel/shatteredpixeldungeon/items/weapon/melee/ShortSword.java
index 4fdeb27b4..fc7dae6bb 100644
--- a/src/com/shatteredpixel/shatteredpixeldungeon/items/weapon/melee/ShortSword.java
+++ b/src/com/shatteredpixel/shatteredpixeldungeon/items/weapon/melee/ShortSword.java
@@ -50,6 +50,7 @@ public class ShortSword extends MeleeWeapon {
 		name = "short sword";
 		image = ItemSpriteSheet.SHORT_SWORD;
 
+		unique = true;
         bones = false;
 	}
 	
diff --git a/src/com/shatteredpixel/shatteredpixeldungeon/items/weapon/missiles/Boomerang.java b/src/com/shatteredpixel/shatteredpixeldungeon/items/weapon/missiles/Boomerang.java
index ff3193f91..892ebe899 100644
--- a/src/com/shatteredpixel/shatteredpixeldungeon/items/weapon/missiles/Boomerang.java
+++ b/src/com/shatteredpixel/shatteredpixeldungeon/items/weapon/missiles/Boomerang.java
@@ -37,6 +37,7 @@ public class Boomerang extends MissileWeapon {
 
 		stackable = false;
 
+        unique = true;
         bones = false;
 	}