diff --git a/packages/constants/src/lib/constants/constants.ts b/packages/constants/src/lib/constants/constants.ts
index b3e623fc1e..8125f78bd6 100644
--- a/packages/constants/src/lib/constants/constants.ts
+++ b/packages/constants/src/lib/constants/constants.ts
@@ -1251,6 +1251,7 @@ export const LIT_CURVE = {
   EcdsaK256: 'K256',
   EcdsaCaitSith: 'ECDSA_CAIT_SITH', // Legacy alias of K256
   EcdsaCAITSITHP256: 'EcdsaCaitSithP256',
+  EcdsaK256Sha256: 'EcdsaK256Sha256',
 } as const;
 
 export type LIT_CURVE_TYPE = keyof typeof LIT_CURVE;
diff --git a/packages/lit-node-client-nodejs/src/lib/helpers/get-signatures.ts b/packages/lit-node-client-nodejs/src/lib/helpers/get-signatures.ts
index b222523ae6..ee3ce0484d 100644
--- a/packages/lit-node-client-nodejs/src/lib/helpers/get-signatures.ts
+++ b/packages/lit-node-client-nodejs/src/lib/helpers/get-signatures.ts
@@ -229,7 +229,8 @@ export const getSignatures = async <T>(params: {
     if (
       sigType !== LIT_CURVE.EcdsaCaitSith &&
       sigType !== LIT_CURVE.EcdsaK256 &&
-      sigType !== LIT_CURVE.EcdsaCAITSITHP256
+      sigType !== LIT_CURVE.EcdsaCAITSITHP256 &&
+      sigType !== LIT_CURVE.EcdsaK256Sha256
     ) {
       throw new UnknownSignatureType(
         {