diff --git a/src/libraries/System.Private.Xml/tests/XmlReader/Tests/AsyncReaderLateInitTests.cs b/src/libraries/System.Private.Xml/tests/XmlReader/Tests/AsyncReaderLateInitTests.cs
index e9802fb14af78..722eab2b2240f 100644
--- a/src/libraries/System.Private.Xml/tests/XmlReader/Tests/AsyncReaderLateInitTests.cs
+++ b/src/libraries/System.Private.Xml/tests/XmlReader/Tests/AsyncReaderLateInitTests.cs
@@ -86,8 +86,8 @@ public static void ReadAfterInitializationWithUriOnAsyncReaderTrows()
             }
         }
 
-        [ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.IsNotWindowsSubsystemForLinux))] // [ActiveIssue("https://github.com/dotnet/runtime/issues/18258")]
-        public static void InitializationWithUriOnNonAsyncReaderTrows()
+        [ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.IsNotWindowsSubsystemForLinux), nameof(PlatformDetection.IsThreadingSupported))] // [ActiveIssue("https://github.com/dotnet/runtime/issues/18258")]
+        public static void InitializationWithUriOnNonAsyncReaderThrows()
         {
             Assert.Throws<System.Net.Http.HttpRequestException>(() => XmlReader.Create("http://test.test/test.html", new XmlReaderSettings() { Async = false }));
         }