diff --git a/nuTens/propagator/const-density-solver.hpp b/nuTens/propagator/const-density-solver.hpp
index 30cdfa9..cb79bb1 100644
--- a/nuTens/propagator/const-density-solver.hpp
+++ b/nuTens/propagator/const-density-solver.hpp
@@ -80,7 +80,7 @@ class ConstDensityMatterSolver : public BaseMatterSolver
     /// shape should look like {Nbatches, 1, 1}.
     /// @param[out] eigenvectors The returned eigenvectors
     /// @param[out] eigenvalues The corresponding eigenvalues
-    override void calculateEigenvalues(const Tensor &energies, Tensor &eigenvectors, Tensor &eigenvalues) override;
+    void calculateEigenvalues(const Tensor &energies, Tensor &eigenvectors, Tensor &eigenvalues) override;
 
   private:
     Tensor PMNS;
diff --git a/nuTens/tensors/tensor.hpp b/nuTens/tensors/tensor.hpp
index 438e8c7..3ab4c84 100644
--- a/nuTens/tensors/tensor.hpp
+++ b/nuTens/tensors/tensor.hpp
@@ -63,7 +63,7 @@ class Tensor
 
     /// @brief Construct a 1-d array with specified values
     /// @arg values The values to include in the tensor
-    Tensor(std::vector<float> values, NTdtypes::scalarType type = NTdtypes::kFloat,
+    Tensor(const std::vector<float> &values, NTdtypes::scalarType type = NTdtypes::kFloat,
            NTdtypes::deviceType device = NTdtypes::kCPU, bool requiresGrad = true);
 
     /// @brief Construct an identity tensor (has to be a 2d square tensor)