diff --git a/src/libraries/System.Private.CoreLib/src/System/Threading/Thread.cs b/src/libraries/System.Private.CoreLib/src/System/Threading/Thread.cs
index da04bf1a2a79c5..ea1a24b625f4fd 100644
--- a/src/libraries/System.Private.CoreLib/src/System/Threading/Thread.cs
+++ b/src/libraries/System.Private.CoreLib/src/System/Threading/Thread.cs
@@ -73,10 +73,10 @@ private void RunWorker()
 
                 try
                 {
-#if TARGET_OSX || NATIVEAOT
+#if TARGET_APPLE || NATIVEAOT
                     // On other platforms, when the underlying native thread is created,
                     // the thread name is set to the name of the managed thread by another thread.
-                    // However, on OS X and NativeAOT (across all OSes), only the thread itself can set its name.
+                    // However, on Apple platforms and NativeAOT (across all OSes), only the thread itself can set its name.
                     // Therefore, by this point the native thread is still unnamed as it has not started yet.
                     Thread thread = Thread.CurrentThread;
                     if (!string.IsNullOrEmpty(thread.Name))