diff --git a/AsyncKeyedLock.Tests/AsyncNonKeyedLockerTests/OriginalTests.cs b/AsyncKeyedLock.Tests/AsyncNonKeyedLockerTests/OriginalTests.cs
index e5f52a5..97d16e0 100644
--- a/AsyncKeyedLock.Tests/AsyncNonKeyedLockerTests/OriginalTests.cs
+++ b/AsyncKeyedLock.Tests/AsyncNonKeyedLockerTests/OriginalTests.cs
@@ -7,6 +7,13 @@ namespace AsyncKeyedLock.Tests.AsyncNonKeyedLockerTests
     [CollectionDefinition("NonKeyed Tests", DisableParallelization = false)]
     public class OriginalTests
     {
+        [Fact]
+        public void NullReleaser()
+        {
+            AsyncNonKeyedLockReleaser releaser = new();
+            releaser.Dispose();
+        }
+
         [Fact]
         public void TestRecursion()
         {