diff --git a/bot/ingame.go b/bot/ingame.go
index 5ceca71..7742318 100644
--- a/bot/ingame.go
+++ b/bot/ingame.go
@@ -322,10 +322,14 @@ func handleSoundEffect(c *Client, p pk.Packet) error {
 	}
 
 	if c.Events.SoundPlay != nil {
-		return c.Events.SoundPlay(
-			data.SoundNames[s.Sound], int(s.Category),
-			float64(s.X)/8, float64(s.Y)/8, float64(s.Z)/8,
-			float32(s.Volume), float32(s.Pitch))
+		if int(s.Sound) < len(data.SoundNames) {
+			return c.Events.SoundPlay(
+				data.SoundNames[s.Sound], int(s.Category),
+				float64(s.X)/8, float64(s.Y)/8, float64(s.Z)/8,
+				float32(s.Volume), float32(s.Pitch))
+		} else {
+			fmt.Fprintf(os.Stderr, "WARN: Unknown sound name. is data.SoundNames out of date?\n")
+		}
 	}
 
 	return nil