diff --git a/examples/bolt_test.rs b/examples/bolt_test.rs
index 9c3b557..1dceb12 100644
--- a/examples/bolt_test.rs
+++ b/examples/bolt_test.rs
@@ -67,9 +67,9 @@ fn main() {
     println!(">> Time to generate proof for establish: {} ms", est_time);
 
     // obtain close token for closing out channel
-    let pk_h = hash_pubkey_to_fr::<Bls12>(&cust_state.pk_c);
+    let channel_id = channel_token.compute_channel_id();
     let option = bidirectional::establish_merchant_issue_close_token(rng, &channel_state, &com, &com_proof,
-                                                                                         &pk_h, b0_customer, b0_merchant, &merch_state);
+                                                                                         &channel_id, b0_customer, b0_merchant, &merch_state);
     let close_token= match option {
         Ok(n) => n.unwrap(),
         Err(e) => panic!("Failed - bidirectional::establish_merchant_issue_close_token(): {}", e)