diff --git a/tests/ImageSharp.Tests/Formats/GeneralFormatTests.cs b/tests/ImageSharp.Tests/Formats/GeneralFormatTests.cs
index a171d6d523..8943d77954 100644
--- a/tests/ImageSharp.Tests/Formats/GeneralFormatTests.cs
+++ b/tests/ImageSharp.Tests/Formats/GeneralFormatTests.cs
@@ -171,7 +171,7 @@ namespace SixLabors.ImageSharp.Tests.Formats
 
                 using (var image2 = Image.Load<Rgba32>(serialized))
                 {
-                    image2.Save($"{path}/{file.FileName}");
+                    image2.Save($"{path}{Path.DirectorySeparatorChar}{file.FileName}");
                 }
             }
         }
diff --git a/tests/ImageSharp.Tests/TestUtilities/ImagingTestCaseUtility.cs b/tests/ImageSharp.Tests/TestUtilities/ImagingTestCaseUtility.cs
index 8a038a6912..07acabccf2 100644
--- a/tests/ImageSharp.Tests/TestUtilities/ImagingTestCaseUtility.cs
+++ b/tests/ImageSharp.Tests/TestUtilities/ImagingTestCaseUtility.cs
@@ -97,7 +97,7 @@ namespace SixLabors.ImageSharp.Tests
                 details = '_' + details;
             }
 
-            return TestUtils.AsInvariantString($"{this.GetTestOutputDir()}/{this.TestName}{pixName}{fn}{details}{extension}");
+            return TestUtils.AsInvariantString($"{this.GetTestOutputDir()}{Path.DirectorySeparatorChar}{this.TestName}{pixName}{fn}{details}{extension}");
         }
 
         /// <summary>