diff --git a/tests/ImageSharp.Tests/Formats/WebP/Vp8ResidualTests.cs b/tests/ImageSharp.Tests/Formats/WebP/Vp8ResidualTests.cs
index f7a8482d9f..cadf92973c 100644
--- a/tests/ImageSharp.Tests/Formats/WebP/Vp8ResidualTests.cs
+++ b/tests/ImageSharp.Tests/Formats/WebP/Vp8ResidualTests.cs
@@ -24,7 +24,7 @@ public class Vp8ResidualTests
         // arrange
         int ctx0 = 0;
         int expected = 20911;
-        string jsonString = File.ReadAllText(@"TestDataWebp\Vp8Residual.json");
+        string jsonString = File.ReadAllText(Path.Combine("TestDataWebp", "Vp8Residual.json"));
         Vp8Residual residual = JsonSerializer.Deserialize<Vp8Residual>(jsonString);
 
         // act