diff --git a/src/abstract/poseidon.ts b/src/abstract/poseidon.ts
index 322732e..26b84a7 100644
--- a/src/abstract/poseidon.ts
+++ b/src/abstract/poseidon.ts
@@ -27,8 +27,7 @@ export function validateOpts(opts: PoseidonOpts) {
   // Default is 5, but for some reasons stark uses 3
   let { sboxPower } = opts;
   if (sboxPower === undefined) sboxPower = 5;
-  if (!([3, 5, 7].includes(sboxPower)))
-    throw new Error(`Poseidon wrong sboxPower=${sboxPower}`);
+  if (![3, 5, 7].includes(sboxPower)) throw new Error(`Poseidon wrong sboxPower=${sboxPower}`);
 
   const _sboxPower = BigInt(sboxPower);
   let sboxFn = (n: bigint) => FpPow(Fp, n, _sboxPower);