diff --git a/tests/SharpEmu.Libs.Tests/Loader/GuestRedZonePatcherTests.cs b/tests/SharpEmu.Libs.Tests/Loader/GuestRedZonePatcherTests.cs
index 4fc7900..1f6e40e 100644
--- a/tests/SharpEmu.Libs.Tests/Loader/GuestRedZonePatcherTests.cs
+++ b/tests/SharpEmu.Libs.Tests/Loader/GuestRedZonePatcherTests.cs
@@ -10,6 +10,13 @@ using Xunit;
 
 namespace SharpEmu.Libs.Tests.Loader;
 
+[CollectionDefinition(GuestRedZonePatcherCollection.Name, DisableParallelization = true)]
+public sealed class GuestRedZonePatcherCollection
+{
+    public const string Name = "GuestRedZonePatcher";
+}
+
+[Collection(GuestRedZonePatcherCollection.Name)]
 public sealed class GuestRedZonePatcherTests
 {
     [Theory]