diff --git a/pkg/game/game-methods.go b/pkg/game/game-methods.go
index 32b13e8..a92fc1d 100644
--- a/pkg/game/game-methods.go
+++ b/pkg/game/game-methods.go
@@ -555,7 +555,7 @@ func (g *Game) Play(id string, card CardName) error {
 	}
 
 	// Remove the card from the player's hand
-	var cards []CardName
+	cards := make([]CardName, 0)
 	for _, c := range state.Cards {
 		if c != card {
 			cards = append(cards, c)
diff --git a/pkg/game/game.go b/pkg/game/game.go
index 258c917..b7acd77 100644
--- a/pkg/game/game.go
+++ b/pkg/game/game.go
@@ -75,9 +75,9 @@ type Game struct {
 	Name         string     `bson:"name" json:"name"`
 	Status       Status     `bson:"status" json:"status"`
 	Players      []Player   `bson:"players" json:"players"`
-	Dummy        []CardName `bson:"dummy" json:"dummy"`
-	CurrentRound Round      `bson:"currentRound" json:"currentRound"`
-	Completed    []Round    `bson:"completedRounds" json:"completedRounds"`
+	Dummy        []CardName `bson:"dummy" json:"-"`
+	CurrentRound Round      `bson:"currentRound" json:"-"`
+	Completed    []Round    `bson:"completedRounds" json:"-"`
 	Deck         []CardName `bson:"deck" json:"-"`
 }