diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/artifacts/UnstableSpellbook.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/artifacts/UnstableSpellbook.java
index 1d1a9f13c..af60687f7 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/artifacts/UnstableSpellbook.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/artifacts/UnstableSpellbook.java
@@ -82,7 +82,7 @@ public class UnstableSpellbook extends Artifact {
 		super();
 
 		Class<?>[] scrollClasses = Generator.Category.SCROLL.classes;
-		float[] probs = Generator.Category.SCROLL.defaultProbs.clone(); //array of primitives, clone gives deep copy.
+		float[] probs = Generator.Category.SCROLL.defaultProbsTotal.clone(); //array of primitives, clone gives deep copy.
 		int i = Random.chances(probs);
 
 		while (i != -1){