diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/data/world/BooleanProvider.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/data/world/BooleanProvider.kt
index f31765ebf..5207f1d3d 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/data/world/BooleanProvider.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/data/world/BooleanProvider.kt
@@ -25,7 +25,7 @@ interface BooleanProvider {
 	/**
 	 * Each time boolean is sampled, there is a fixed chance for it to test true
 	 */
-	class Unbiased(val chance: Float) : BooleanProvider, Instance {
+	data class Unbiased(val chance: Float) : BooleanProvider, Instance {
 		constructor(chance: Int) : this(1f / chance)
 
 		override fun instance(): Instance {
@@ -57,7 +57,7 @@ interface BooleanProvider {
 	 *
 	 * Once roll is successful, `failures` is reset back to 1.
 	 */
-	class BiasedLinear(val baseChance: Float) : BooleanProvider {
+	data class BiasedLinear(val baseChance: Float) : BooleanProvider {
 		constructor(middle: Float, at: Int) : this(middle / at)
 
 		private class I(private val baseChance: Float) : Instance {