diff --git a/lib/Target/X86/README-X86-64.txt b/lib/Target/X86/README-X86-64.txt
index 1f3d17bd270..ad12137c891 100644
--- a/lib/Target/X86/README-X86-64.txt
+++ b/lib/Target/X86/README-X86-64.txt
@@ -5,10 +5,6 @@ PIC code model.
 
 //===---------------------------------------------------------------------===//
 
-Make use of "Red Zone".
-
-//===---------------------------------------------------------------------===//
-
 For this:
 
 extern void xx(void);