diff --git a/fhevm/precompiles.go b/fhevm/precompiles.go
index e6bb4ba..b395c2b 100644
--- a/fhevm/precompiles.go
+++ b/fhevm/precompiles.go
@@ -2234,6 +2234,8 @@ func decryptValue(environment EVMEnvironment, ct *tfheCiphertext) (uint64, error
 		fheType = kms.FheType_Euint16
 	case FheUint32:
 		fheType = kms.FheType_Euint32
+	case FheUint64:
+		fheType = kms.FheType_Euint64
 	}
 
 	// TODO: generate merkle proof for some data