diff --git a/app/src/main/java/me/zobrist/tichucounter/Round.kt b/app/src/main/java/me/zobrist/tichucounter/Round.kt
index fad6b61..7bd3aa0 100644
--- a/app/src/main/java/me/zobrist/tichucounter/Round.kt
+++ b/app/src/main/java/me/zobrist/tichucounter/Round.kt
@@ -1,6 +1,8 @@
 package me.zobrist.tichucounter
 
-class Round() {
+import java.io.Serializable
+
+class Round(): Serializable {
     var scoreA: Int = 0
     var scoreB: Int = 0