1 files changed, 1 insertions, 2 deletions
diff --git a/crypto/src/math/ec/custom/sec/SecP521R1Curve.cs b/crypto/src/math/ec/custom/sec/SecP521R1Curve.cs
index 0841fb8a5..cca86e2cb 100644
--- a/crypto/src/math/ec/custom/sec/SecP521R1Curve.cs
+++ b/crypto/src/math/ec/custom/sec/SecP521R1Curve.cs
@@ -8,8 +8,7 @@ namespace Org.BouncyCastle.Math.EC.Custom.Sec
     internal class SecP521R1Curve
         : AbstractFpCurve
     {
-        public static readonly BigInteger q = new BigInteger(1,
-            Hex.Decode("01FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"));
+        public static readonly BigInteger q = SecP521R1FieldElement.Q;
 
         private const int SECP521R1_DEFAULT_COORDS = COORD_JACOBIAN;
         private const int SECP521R1_FE_INTS = 17;