diff --git a/src/crypto.rs b/src/crypto.rs
index c05fa31..ed1eee1 100644
--- a/src/crypto.rs
+++ b/src/crypto.rs
@@ -9,6 +9,7 @@ use sp_client::{
     silentpayments::{
         bitcoin_hashes::{sha256t_hash_newtype, Hash, HashEngine},
         sending::SilentPaymentAddress,
+        secp256k1::PublicKey
     },
 };
 use tsify::Tsify;
@@ -39,8 +40,10 @@ pub struct AnkSharedSecret {
 }
 
 impl AnkSharedSecret {
-    pub fn new(shared_point: [u8; 64]) -> Self {
-        let secret = AnkSharedSecretHash::from_shared_point(shared_point).to_byte_array();
+    pub fn new(shared_point: PublicKey) -> Self {
+        let mut shared_point_bin = [0u8;64];
+        shared_point_bin.copy_from_slice(&shared_point.serialize_uncompressed()[1..]);
+        let secret = AnkSharedSecretHash::from_shared_point(shared_point_bin).to_byte_array();
         Self { secret: secret.to_lower_hex_string() }
     }