diff --git a/CalibCalorimetry/HcalPlugins/src/HBHEDarkeningEP.cc b/CalibCalorimetry/HcalPlugins/src/HBHEDarkeningEP.cc
index 2d163e5b0ef0d..a569fd1e43df3 100644
--- a/CalibCalorimetry/HcalPlugins/src/HBHEDarkeningEP.cc
+++ b/CalibCalorimetry/HcalPlugins/src/HBHEDarkeningEP.cc
@@ -67,8 +67,8 @@ HBHEDarkeningEP::ReturnType HBHEDarkeningEP::produce(const HBHEDarkeningRecord&
   return std::make_unique<HBHEDarkening>(pset_.getParameter<int>("ieta_shift"),
                                          pset_.getParameter<double>("drdA"),
                                          pset_.getParameter<double>("drdB"),
-                                         dosemaps,
-                                         years);
+                                         std::move(dosemaps),
+                                         std::move(years));
 }
 
 DEFINE_FWK_EVENTSETUP_SOURCE(HBHEDarkeningEP);
diff --git a/CondFormats/HcalObjects/interface/HBHEDarkening.h b/CondFormats/HcalObjects/interface/HBHEDarkening.h
index 525ecef3fbde4..b41afecd8f734 100644
--- a/CondFormats/HcalObjects/interface/HBHEDarkening.h
+++ b/CondFormats/HcalObjects/interface/HBHEDarkening.h
@@ -40,8 +40,8 @@ class HBHEDarkening {
   HBHEDarkening(int ieta_shift,
                 float drdA,
                 float drdB,
-                const std::map<int, std::vector<std::vector<float>>>& dosemaps,
-                const std::vector<LumiYear>& years);
+                std::map<int, std::vector<std::vector<float>>> dosemaps,
+                std::vector<LumiYear> years);
   ~HBHEDarkening() {}
 
   //public accessors
diff --git a/CondFormats/HcalObjects/src/HBHEDarkening.cc b/CondFormats/HcalObjects/src/HBHEDarkening.cc
index 6600691365fb1..bd144107c84b3 100644
--- a/CondFormats/HcalObjects/src/HBHEDarkening.cc
+++ b/CondFormats/HcalObjects/src/HBHEDarkening.cc
@@ -16,9 +16,9 @@
 HBHEDarkening::HBHEDarkening(int ieta_shift,
                              float drdA,
                              float drdB,
-                             const std::map<int, std::vector<std::vector<float>>>& dosemaps,
-                             const std::vector<LumiYear>& years)
-    : ieta_shift_(ieta_shift), drdA_(drdA), drdB_(drdB), dosemaps_(dosemaps), years_(years) {
+                             std::map<int, std::vector<std::vector<float>>> dosemaps,
+                             std::vector<LumiYear> years)
+    : ieta_shift_(ieta_shift), drdA_(drdA), drdB_(drdB), dosemaps_(std::move(dosemaps)), years_(std::move(years)) {
   //finish initializing years
   std::sort(years_.begin(), years_.end());
   //sum up int lumi