diff --git a/src/script_interface/accumulators/Correlator.hpp b/src/script_interface/accumulators/Correlator.hpp
index c5b51878c10..3d9d0b9a6d0 100644
--- a/src/script_interface/accumulators/Correlator.hpp
+++ b/src/script_interface/accumulators/Correlator.hpp
@@ -42,7 +42,6 @@ class Correlator : public AccumulatorBase {
 
 public:
   Correlator() {
-    using Utils::as_const;
     /* Only args can be changed after construction. */
     add_parameters(
         {{"tau_lin", m_correlator, &CoreCorr::tau_lin},
@@ -53,8 +52,8 @@ class Correlator : public AccumulatorBase {
          {"args", m_correlator, &CoreCorr::set_correlation_args,
           &CoreCorr::correlation_args},
          {"dim_corr", m_correlator, &CoreCorr::dim_corr},
-         {"obs1", as_const(m_obs1)},
-         {"obs2", as_const(m_obs2)},
+         {"obs1", Utils::as_const(m_obs1)},
+         {"obs2", Utils::as_const(m_obs2)},
          {"n_result", m_correlator, &CoreCorr::n_result}});
   }