diff --git a/racket/src/racket/src/salloc.c b/racket/src/racket/src/salloc.c
index 804639ca1d..6cd52ad582 100644
--- a/racket/src/racket/src/salloc.c
+++ b/racket/src/racket/src/salloc.c
@@ -242,7 +242,7 @@ void scheme_setup_thread_local_key_if_needed() XFORM_SKIP_PROC
     abort();
   }
 # if defined(__APPLE__) && defined(__MACH__)
-  /* Darwin version 11 (Max OS X Lion) changes the offset from %gs
+  /* Darwin version 11 (Mac OS X Lion) changes the offset from %gs
      for thread-local storage. */
   {
     int name[2];