diff --git a/sys/amd64/amd64/apic_vector.S b/sys/amd64/amd64/apic_vector.S
index 4455cab0e78..f23f16296dd 100644
--- a/sys/amd64/amd64/apic_vector.S
+++ b/sys/amd64/amd64/apic_vector.S
@@ -196,8 +196,6 @@ IDTVEC(hv_vmbus_callback)
  */
 	.text
 
-#define	NAKE_INTR_CS	24
-
 	SUPERALIGN_TEXT
 invltlb_ret:
 	call	as_lapic_eoi