diff --git a/src/libraries/System.Diagnostics.TextWriterTraceListener/tests/XmlWriterTraceListenerTests.cs b/src/libraries/System.Diagnostics.TextWriterTraceListener/tests/XmlWriterTraceListenerTests.cs
index d71818e9fd097a..20576cc9190b91 100644
--- a/src/libraries/System.Diagnostics.TextWriterTraceListener/tests/XmlWriterTraceListenerTests.cs
+++ b/src/libraries/System.Diagnostics.TextWriterTraceListener/tests/XmlWriterTraceListenerTests.cs
@@ -12,6 +12,7 @@
 
 namespace System.Diagnostics.TextWriterTraceListenerTests
 {
+    [SkipOnPlatform(TestPlatforms.iOS | TestPlatforms.tvOS, "libproc is not supported on iOS/tvOS")]
     public class XmlWriterTraceListenerTests : FileCleanupTestBase
     {
         private readonly string _processName;