diff --git a/Framework/DataObjects/inc/MantidDataObjects/PeakShapeDetectorBin.h b/Framework/DataObjects/inc/MantidDataObjects/PeakShapeDetectorBin.h
index 2384b0929387..f8de67d3b594 100644
--- a/Framework/DataObjects/inc/MantidDataObjects/PeakShapeDetectorBin.h
+++ b/Framework/DataObjects/inc/MantidDataObjects/PeakShapeDetectorBin.h
@@ -16,7 +16,7 @@ namespace DataObjects {
  */
 class MANTID_DATAOBJECTS_DLL PeakShapeDetectorBin : public PeakShapeBase {
 public:
-  PeakShapeDetectorBin(std::vector<std::tuple<int32_t, double, double>> detectorBinList,
+  PeakShapeDetectorBin(const std::vector<std::tuple<int32_t, double, double>> &detectorBinList,
                        Kernel::SpecialCoordinateSystem frame, std::string algorithmName = std::string(),
                        int algorithmVersion = -1);
   /// Equals operator
diff --git a/Framework/DataObjects/src/PeakShapeDetectorBin.cpp b/Framework/DataObjects/src/PeakShapeDetectorBin.cpp
index 8ee7801b21a0..b7991e326cf7 100644
--- a/Framework/DataObjects/src/PeakShapeDetectorBin.cpp
+++ b/Framework/DataObjects/src/PeakShapeDetectorBin.cpp
@@ -21,7 +21,7 @@ namespace Mantid::DataObjects {
  * @param algorithmName Name of the algorithm using this shape
  * @param algorithmVersion Version of the above algorithm
  */
-PeakShapeDetectorBin::PeakShapeDetectorBin(std::vector<std::tuple<int32_t, double, double>> detectorBinList,
+PeakShapeDetectorBin::PeakShapeDetectorBin(const std::vector<std::tuple<int32_t, double, double>> &detectorBinList,
                                            Kernel::SpecialCoordinateSystem frame, std::string algorithmName,
                                            int algorithmVersion)
     : PeakShapeBase(frame, std::move(algorithmName), algorithmVersion), m_detectorBinList(detectorBinList) {