diff --git a/tests/SharedParameterFileTests.cs b/tests/SharedParameterFileTests.cs
index f683471..f686482 100644
--- a/tests/SharedParameterFileTests.cs
+++ b/tests/SharedParameterFileTests.cs
@@ -30,7 +30,7 @@ static SharedParameterFileTests()
         [Fact]
         public void ValidFilesPassValidation()
         {
-            Assert.All(SharedParameterFiles.Where(f => f.StartsWith(PathToValidFiles)),
+            Assert.All(SharedParameterFiles.Where(f => f.StartsWith(PathToValidFiles, StringComparison.InvariantCulture)),
                 sharedParamFilePath =>
                 {
                     var sharedParamFile = new SharedParameterFile(sharedParamFilePath);
@@ -45,7 +45,7 @@ public void ValidFilesPassValidation()
         [Fact]
         public void InvalidFilesFailValidation()
         {
-            Assert.All(SharedParameterFiles.Where(f => f.StartsWith(PathToInvalidFiles)),
+            Assert.All(SharedParameterFiles.Where(f => f.StartsWith(PathToInvalidFiles, StringComparison.InvariantCulture)),
                 sharedParamFilePath =>
                 {
                     var sharedParamFile = new SharedParameterFile(sharedParamFilePath);
@@ -184,7 +184,7 @@ public void GroupsAreParsedCorrectly()
         [Fact]
         public void ClonedAndRandomizedFilesAreEqual()
         {
-            Assert.All(SharedParameterFiles.Where(f => f.StartsWith(PathToValidFiles)),
+            Assert.All(SharedParameterFiles.Where(f => f.StartsWith(PathToValidFiles, StringComparison.InvariantCulture)),
                 sharedParamFilePath =>
                 {
                     var sharedParamFile1 = new SharedParameterFile(sharedParamFilePath);
@@ -200,7 +200,7 @@ public void ClonedAndRandomizedFilesAreEqual()
         [Fact]
         public void ToStringOutputCopyIsEqual()
         {
-            Assert.All(SharedParameterFiles.Where(f => f.StartsWith(PathToValidFiles)),
+            Assert.All(SharedParameterFiles.Where(f => f.StartsWith(PathToValidFiles, StringComparison.InvariantCulture)),
                 sharedParamFilePath =>
                 {
                     var sharedParamFile1 = new SharedParameterFile(sharedParamFilePath);
@@ -218,7 +218,7 @@ public void ToStringOutputCopyIsEqual()
         public void FileIsSerializedProperly()
         {
             var simpleSharedFromDisk = File
-                .ReadAllText(SharedParameterFiles.FirstOrDefault(f => f.EndsWith(@"SimpleShared_1.txt")));
+                .ReadAllText(SharedParameterFiles.FirstOrDefault(f => f.EndsWith(@"SimpleShared_1.txt", StringComparison.InvariantCulture)));
 
             var simpleSharedFromBuilt = new SharedParameterFile(new Dictionary<string,int> { { "Identity Data", 100 } } );
 
diff --git a/tests/TypeCatalogFileTests.cs b/tests/TypeCatalogFileTests.cs
index 113ef32..5ea86b6 100644
--- a/tests/TypeCatalogFileTests.cs
+++ b/tests/TypeCatalogFileTests.cs
@@ -27,7 +27,7 @@ static TypeCatalogFileTests()
         [Fact]
         public void CheckIfNumberOfParametersIsCorrect()
         {
-            Assert.All(CatalogTypeFiles.Where(f => f.StartsWith(PathToValidFiles)),
+            Assert.All(CatalogTypeFiles.Where(f => f.StartsWith(PathToValidFiles, StringComparison.InvariantCulture)),
                 catalogTypeFilePath =>
                 {
                     var catalogTypeFile = new TypeCatalogFile(catalogTypeFilePath);
@@ -40,7 +40,7 @@ public void CheckIfNumberOfParametersIsCorrect()
         [Fact]
         public void CheckIfNumberOfTypesIsCorrect()
         {
-            Assert.All(CatalogTypeFiles.Where(f => f.StartsWith(PathToValidFiles)),
+            Assert.All(CatalogTypeFiles.Where(f => f.StartsWith(PathToValidFiles, StringComparison.InvariantCulture)),
                 catalogTypeFilePath =>
                 {
                     var catalogTypeFile = new TypeCatalogFile(catalogTypeFilePath);
@@ -95,7 +95,7 @@ public void iPhoneCatalogReadAndBuiltAreEqual()
             var catalogTypeFileFromBuilt = catalogTypeFile.ToString();
             Assert.True(!string.IsNullOrWhiteSpace(catalogTypeFileFromBuilt));
 
-            var iPhoneCatalogFilePath = CatalogTypeFiles.FirstOrDefault(f => f.EndsWith(@"iPhone6.txt"));
+            var iPhoneCatalogFilePath = CatalogTypeFiles.FirstOrDefault(f => f.EndsWith(@"iPhone6.txt", StringComparison.InvariantCulture));
             var iPhoneCatalogFromDisk = File.ReadAllText(iPhoneCatalogFilePath);
             Assert.True(File.Exists(iPhoneCatalogFilePath) && !string.IsNullOrWhiteSpace(iPhoneCatalogFromDisk));