diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index 52c9af429dd8..54b29bb24e71 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -417,7 +417,7 @@ ENTRY(phys_base)
 	.section .bss, "aw", @nobits
 	.align L1_CACHE_BYTES
 ENTRY(idt_table)
-	.skip 256 * 16
+	.skip IDT_ENTRIES * 16
 
 	.section .bss.page_aligned, "aw", @nobits
 	.align PAGE_SIZE