diff --git a/include/asm-x86/system.h b/include/asm-x86/system.h
index a2f04cd79b29617e4677a0a1a1c23f4f1d434b23..7e4c133795a13caa0e0f7c136c80dafcc77f648b 100644
--- a/include/asm-x86/system.h
+++ b/include/asm-x86/system.h
@@ -289,7 +289,7 @@ static inline void native_wbinvd(void)
 
 #endif/* CONFIG_PARAVIRT */
 
-#define stts() write_cr0(8 | read_cr0())
+#define stts() write_cr0(read_cr0() | X86_CR0_TS)
 
 #endif /* __KERNEL__ */