diff --git a/concrete-optimizer/src/optimization/dag/solo_key/optimize.rs b/concrete-optimizer/src/optimization/dag/solo_key/optimize.rs
index 9286cf859..e224b840e 100644
--- a/concrete-optimizer/src/optimization/dag/solo_key/optimize.rs
+++ b/concrete-optimizer/src/optimization/dag/solo_key/optimize.rs
@@ -888,9 +888,9 @@ mod tests {
         let shape = Shape::number();
         let mut dag = unparametrized::OperationDag::new();
         let weight = Weights::number(weight);
-        let val = dag.add_input(precision, &shape);
+        let val = dag.add_input(precision, shape);
         let lut1 = dag.add_rounded_lut(val, FunctionTable::UNKWOWN, rounded_precision, precision);
-        let dot = dag.add_dot([lut1], &weight);
+        let dot = dag.add_dot([lut1], weight);
         let _lut2 = dag.add_rounded_lut(
             dot,
             FunctionTable::UNKWOWN,
diff --git a/concrete-optimizer/src/optimization/decomposition/mod.rs b/concrete-optimizer/src/optimization/decomposition/mod.rs
index 9c476c58a..e6e2e6c43 100644
--- a/concrete-optimizer/src/optimization/decomposition/mod.rs
+++ b/concrete-optimizer/src/optimization/decomposition/mod.rs
@@ -53,7 +53,7 @@ impl PersistDecompCaches {
             ks: keyswitch::cache(security_level, processing_unit, complexity_model.clone()),
             cmux: cmux::cache(security_level, processing_unit, complexity_model.clone()),
             pp: pp_switch::cache(security_level, processing_unit, complexity_model.clone()),
-            cb: circuit_bootstrap::cache(security_level, processing_unit, complexity_model.clone()),
+            cb: circuit_bootstrap::cache(security_level, processing_unit, complexity_model),
             cache_on_disk,
         };
         if cache_on_disk {