diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/data/condition/ChanceCondition.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/data/condition/ChanceCondition.kt
index 232f88261..4380d963a 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/data/condition/ChanceCondition.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/data/condition/ChanceCondition.kt
@@ -29,6 +29,6 @@ data class ChanceCondition(val chance: Double) : LootItemCondition, LootItemCond
 	}
 
 	companion object {
-		val SERIALIZER = Codec2Serializer<ChanceCondition>(RecordCodecBuilder.create { it.group(Codec.DOUBLE.fieldOf("chance").forGetter(ChanceCondition::chance)).apply(it, ::ChanceCondition) })
+		val SERIALIZER = Codec2Serializer<ChanceCondition>(RecordCodecBuilder.create { it.group(Codec.doubleRange(0.0, 1.0).fieldOf("chance").forGetter(ChanceCondition::chance)).apply(it, ::ChanceCondition) })
 	}
 }