diff --git a/tests/Umbraco.Tests.UnitTests/Umbraco.Core/Configurations/LanguageXmlTests.cs b/tests/Umbraco.Tests.UnitTests/Umbraco.Core/Configurations/LanguageXmlTests.cs
index 38151cec7d7d..0de8044f75f6 100644
--- a/tests/Umbraco.Tests.UnitTests/Umbraco.Core/Configurations/LanguageXmlTests.cs
+++ b/tests/Umbraco.Tests.UnitTests/Umbraco.Core/Configurations/LanguageXmlTests.cs
@@ -30,7 +30,7 @@ public void Can_Load_Language_Xml_Files()
         private static DirectoryInfo GetLanguageDirectory()
         {
             var testDirectoryPathParts = Path.GetDirectoryName(TestContext.CurrentContext.TestDirectory)
-                .Split(new[] { Path.DirectorySeparatorChar }, StringSplitOptions.RemoveEmptyEntries);
+                .Split(new[] { Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar }, StringSplitOptions.RemoveEmptyEntries);
             var solutionDirectoryPathParts = testDirectoryPathParts
                 .Take(Array.IndexOf(testDirectoryPathParts, "tests"));
             var languageFolderPathParts = new List<string>(solutionDirectoryPathParts);