diff --git a/arch/x86/include/asm/setup.h b/arch/x86/include/asm/setup.h
index 5a3a13715756..c2308f5250fd 100644
--- a/arch/x86/include/asm/setup.h
+++ b/arch/x86/include/asm/setup.h
@@ -1,6 +1,8 @@
 #ifndef _ASM_X86_SETUP_H
 #define _ASM_X86_SETUP_H
 
+#ifdef __KERNEL__
+
 #define COMMAND_LINE_SIZE 2048
 
 #ifndef __ASSEMBLY__
@@ -33,8 +35,6 @@ struct x86_quirks {
 
 #endif /* __ASSEMBLY__ */
 
-#ifdef __KERNEL__
-
 #ifdef __i386__
 
 #include <linux/pfn.h>