diff --git a/headers/private/kernel/arch/x86_64/arch_system_info.h b/headers/private/kernel/arch/x86_64/arch_system_info.h
index 9137e0765f..393f297d59 100644
--- a/headers/private/kernel/arch/x86_64/arch_system_info.h
+++ b/headers/private/kernel/arch/x86_64/arch_system_info.h
@@ -13,9 +13,11 @@
 extern "C" {
 #endif
 
-//status_t get_current_cpuid(cpuid_info *info, uint32 eax);
-//uint32 get_eflags(void);
-//void set_eflags(uint32 value);
+#ifdef _BOOT_MODE
+status_t get_current_cpuid(cpuid_info *info, uint32 eax);
+uint32 get_eflags(void);
+void set_eflags(uint32 value);
+#endif
 
 //status_t _user_get_cpuid(cpuid_info *info, uint32 eax, uint32 cpu);