diff --git a/backend/canisters/local_user_index/impl/src/lib.rs b/backend/canisters/local_user_index/impl/src/lib.rs
index 87f2b197fb..d83b5cb265 100644
--- a/backend/canisters/local_user_index/impl/src/lib.rs
+++ b/backend/canisters/local_user_index/impl/src/lib.rs
@@ -66,7 +66,7 @@ impl RuntimeState {
             user_details.unique_person_proof = credential_jwts.as_ref().and_then(|jwts| {
                 let now = self.env.now();
                 self.data
-                    .extract_proof_of_unique_personhood(user_details.principal, &jwts, now)
+                    .extract_proof_of_unique_personhood(user_details.principal, jwts, now)
             });
         }
 
diff --git a/backend/libraries/proof_of_unique_personhood/src/lib.rs b/backend/libraries/proof_of_unique_personhood/src/lib.rs
index 8c37452649..f9310ad135 100644
--- a/backend/libraries/proof_of_unique_personhood/src/lib.rs
+++ b/backend/libraries/proof_of_unique_personhood/src/lib.rs
@@ -15,7 +15,7 @@ pub fn verify_proof_of_unique_personhood(
     now: TimestampMillis,
 ) -> Result<UniquePersonProof, String> {
     match ic_verifiable_credentials::validate_ii_presentation_and_claims(
-        &credential_jwt,
+        credential_jwt,
         principal,
         &VcFlowSigners {
             ii_canister_id: internet_identity_canister_id,