diff --git a/halo2_backend/src/poly/kzg/commitment.rs b/halo2_backend/src/poly/kzg/commitment.rs
index 2b84dc1cf9..3f2f755edf 100644
--- a/halo2_backend/src/poly/kzg/commitment.rs
+++ b/halo2_backend/src/poly/kzg/commitment.rs
@@ -294,10 +294,10 @@ where
         }
     }
 
-    pub fn verifier_params(&self) -> ParamsVerifierKZG<E> {
+    pub fn into_verifier_params(self) -> ParamsVerifierKZG<E> {
         ParamsVerifierKZG {
             k: self.k,
-            g_lagrange: self.g_lagrange.clone(),
+            g_lagrange: self.g_lagrange,
             s_g2: self.s_g2,
         }
     }
diff --git a/halo2_backend/src/poly/multiopen_test.rs b/halo2_backend/src/poly/multiopen_test.rs
index e907d0134c..a3f3d62af2 100644
--- a/halo2_backend/src/poly/multiopen_test.rs
+++ b/halo2_backend/src/poly/multiopen_test.rs
@@ -111,7 +111,7 @@ mod test {
             &engine, &params,
         );
 
-        let verifier_params = params.verifier_params();
+        let verifier_params = params.into_verifier_params();
 
         verify::<_, VerifierGWC<_>, _, Blake2bRead<_, _, Challenge255<_>>, AccumulatorStrategy<_>>(
             &verifier_params,
@@ -147,7 +147,7 @@ mod test {
             Blake2bWrite<_, _, Challenge255<_>>,
         >(&engine, &params);
 
-        let verifier_params = params.verifier_params();
+        let verifier_params = params.into_verifier_params();
 
         verify::<
             KZGCommitmentScheme<Bn256>,