1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/src/asn1/nist/KMACwithSHAKE256_params.cs b/crypto/src/asn1/nist/KMACwithSHAKE256_params.cs
index f0560e9da..dfdfb2c36 100644
--- a/crypto/src/asn1/nist/KMACwithSHAKE256_params.cs
+++ b/crypto/src/asn1/nist/KMACwithSHAKE256_params.cs
@@ -85,7 +85,7 @@ public class KMacWithShake256Params : Asn1Encodable
 
     public override Asn1Object ToAsn1Object()
     {
-        Asn1EncodableVector v = new Asn1EncodableVector();
+        Asn1EncodableVector v = new Asn1EncodableVector(2);
         if (outputLength != DEF_LENGTH)
         {
             v.Add(new DerInteger(outputLength));