diff --git a/TouchyTickets/GameImpl.cs b/TouchyTickets/GameImpl.cs
index 416ee53..e9dd9ea 100644
--- a/TouchyTickets/GameImpl.cs
+++ b/TouchyTickets/GameImpl.cs
@@ -126,7 +126,7 @@ namespace TouchyTickets {
             #if DEBUG
             return 3;
             #endif
-            return Math.Min(3, (int) (this.Tickets / this.GetStarPrice()));
+            return (int) BigInteger.Min(3, this.Tickets / this.GetStarPrice());
         }
 
     }