diff --git a/RecCalorimeter/src/components/LayeredCaloTowerTool.cpp b/RecCalorimeter/src/components/LayeredCaloTowerTool.cpp
index f79b58c3..169018e2 100644
--- a/RecCalorimeter/src/components/LayeredCaloTowerTool.cpp
+++ b/RecCalorimeter/src/components/LayeredCaloTowerTool.cpp
@@ -81,7 +81,8 @@ void LayeredCaloTowerTool::towersNumber(int& nEta, int& nPhi) {
   nPhi = m_nPhiTower;
 }
 
-uint LayeredCaloTowerTool::buildTowers(std::vector<std::vector<float>>& aTowers, bool fillTowerCells) {
+uint LayeredCaloTowerTool::buildTowers(std::vector<std::vector<float>>& aTowers,
+                                       [[maybe_unused]] bool fillTowerCells) {
   // Get the input collection with cells from simulation + digitisation (after
   // calibration and with noise)
   const edm4hep::CalorimeterHitCollection* cells = m_cells.get();
diff --git a/RecFCCeeCalorimeter/src/components/CaloTopoClusterFCCee.cpp b/RecFCCeeCalorimeter/src/components/CaloTopoClusterFCCee.cpp
index 1cf88a4c..3ac9af91 100644
--- a/RecFCCeeCalorimeter/src/components/CaloTopoClusterFCCee.cpp
+++ b/RecFCCeeCalorimeter/src/components/CaloTopoClusterFCCee.cpp
@@ -189,9 +189,10 @@ StatusCode CaloTopoClusterFCCee::execute() {
       else
         warning() << "No cell positions tool found for system id " << systemId << ". " << endmsg;
 
-      newCell.setPosition(edm4hep::Vector3f{posCell.X() / dd4hep::mm,
-                                            posCell.Y() / dd4hep::mm,
-                                            posCell.Z() / dd4hep::mm});
+      newCell.setPosition(edm4hep::Vector3f{
+          static_cast<float>(posCell.X() / dd4hep::mm),
+          static_cast<float>(posCell.Y() / dd4hep::mm),
+          static_cast<float>(posCell.Z() / dd4hep::mm)});
       posX += posCell.X() * newCell.getEnergy();
       posY += posCell.Y() * newCell.getEnergy();
       posZ += posCell.Z() * newCell.getEnergy();
@@ -209,9 +210,10 @@ StatusCode CaloTopoClusterFCCee::execute() {
               info() << "Problem in erasing cell ID from map." << endmsg;
     }
     cluster.setEnergy(energy);
-    cluster.setPosition(edm4hep::Vector3f{(posX / energy) / dd4hep::mm,
-                                          (posY / energy) / dd4hep::mm,
-                                          (posZ / energy) / dd4hep::mm});
+    cluster.setPosition(edm4hep::Vector3f{
+        static_cast<float>((posX / energy) / dd4hep::mm),
+        static_cast<float>((posY / energy) / dd4hep::mm),
+        static_cast<float>((posZ / energy) / dd4hep::mm)});
     // store deltaR of cluster in time for the moment..
     sumPhi = sumPhi / energy;
     sumTheta = sumTheta / energy;