diff --git a/types/coin.go b/types/coin.go
index 84a0e60369..b68948e7a7 100644
--- a/types/coin.go
+++ b/types/coin.go
@@ -124,7 +124,7 @@ func (coin Coin) Sub(coinB Coin) Coin {
 
 	res := Coin{coin.Denom, coin.Amount.Sub(coinB.Amount)}
 	if res.IsNegative() {
-		panic("negative count amount")
+		panic("negative coin amount")
 	}
 
 	return res