diff --git a/src/Providers.CUDA/LinearAlgebra/CudaLinearAlgebraProvider.cs b/src/Providers.CUDA/LinearAlgebra/CudaLinearAlgebraProvider.cs
index 577e9e73..c1f0c337 100644
--- a/src/Providers.CUDA/LinearAlgebra/CudaLinearAlgebraProvider.cs
+++ b/src/Providers.CUDA/LinearAlgebra/CudaLinearAlgebraProvider.cs
@@ -47,7 +47,7 @@ namespace MathNet.Numerics.Providers.CUDA.LinearAlgebra
         /// <param name="hintPath">Hint path where to look for the native binaries</param>
         internal CudaLinearAlgebraProvider(string hintPath)
         {
-            _hintPath = Path.GetFullPath(hintPath);
+            _hintPath = hintPath != null ? Path.GetFullPath(hintPath) : null;
         }
 
         /// <summary>
diff --git a/src/Providers.MKL/FourierTransform/MklFourierTransformProvider.cs b/src/Providers.MKL/FourierTransform/MklFourierTransformProvider.cs
index 49768515..ba5e3370 100644
--- a/src/Providers.MKL/FourierTransform/MklFourierTransformProvider.cs
+++ b/src/Providers.MKL/FourierTransform/MklFourierTransformProvider.cs
@@ -54,7 +54,7 @@ namespace MathNet.Numerics.Providers.MKL.FourierTransform
         /// <param name="hintPath">Hint path where to look for the native binaries</param>
         internal MklFourierTransformProvider(string hintPath)
         {
-            _hintPath = Path.GetFullPath(hintPath);
+            _hintPath = hintPath != null ? Path.GetFullPath(hintPath) : null;
         }
 
         /// <summary>
diff --git a/src/Providers.MKL/LinearAlgebra/MklLinearAlgebraProvider.cs b/src/Providers.MKL/LinearAlgebra/MklLinearAlgebraProvider.cs
index eb817cb1..9b0aec1d 100644
--- a/src/Providers.MKL/LinearAlgebra/MklLinearAlgebraProvider.cs
+++ b/src/Providers.MKL/LinearAlgebra/MklLinearAlgebraProvider.cs
@@ -71,7 +71,7 @@ namespace MathNet.Numerics.Providers.MKL.LinearAlgebra
         /// <param name="accuracy">VML accuracy mode.</param>
         internal MklLinearAlgebraProvider(string hintPath, MklConsistency consistency, MklPrecision precision, MklAccuracy accuracy)
         {
-            _hintPath = Path.GetFullPath(hintPath);
+            _hintPath = hintPath != null ? Path.GetFullPath(hintPath) : null;
             _consistency = consistency;
             _precision = precision;
             _accuracy = accuracy;
diff --git a/src/Providers.MKL/SparseSolver/MklSparseSolverProvider.cs b/src/Providers.MKL/SparseSolver/MklSparseSolverProvider.cs
index 11e6f3ec..86ae7bf1 100644
--- a/src/Providers.MKL/SparseSolver/MklSparseSolverProvider.cs
+++ b/src/Providers.MKL/SparseSolver/MklSparseSolverProvider.cs
@@ -19,7 +19,7 @@ namespace MathNet.Numerics.Providers.MKL.SparseSolver
         /// <param name="hintPath">Hint path where to look for the native binaries</param>
         internal MklSparseSolverProvider(string hintPath)
         {
-            _hintPath = Path.GetFullPath(hintPath);
+            _hintPath = hintPath != null ? Path.GetFullPath(hintPath) : null;
         }
 
         /// <summary>
diff --git a/src/Providers.OpenBLAS/LinearAlgebra/OpenBlasLinearAlgebraProvider.cs b/src/Providers.OpenBLAS/LinearAlgebra/OpenBlasLinearAlgebraProvider.cs
index 60bb1fd6..68ab6eee 100644
--- a/src/Providers.OpenBLAS/LinearAlgebra/OpenBlasLinearAlgebraProvider.cs
+++ b/src/Providers.OpenBLAS/LinearAlgebra/OpenBlasLinearAlgebraProvider.cs
@@ -63,7 +63,7 @@ namespace MathNet.Numerics.Providers.OpenBLAS.LinearAlgebra
         /// <param name="hintPath">Hint path where to look for the native binaries</param>
         internal OpenBlasLinearAlgebraProvider(string hintPath)
         {
-            _hintPath = Path.GetFullPath(hintPath);
+            _hintPath = hintPath != null ? Path.GetFullPath(hintPath) : null;
         }
 
         /// <summary>