diff --git a/src/hulk/idt.d b/src/hulk/idt.d
index 845f5cc..23b6422 100644
--- a/src/hulk/idt.d
+++ b/src/hulk/idt.d
@@ -74,6 +74,7 @@ struct Idt
     public static enum ulong INT_APIC_TIMER = 0x70u;
     public static enum ulong INT_APIC_LINT0 = 0x71u;
     public static enum ulong INT_APIC_LINT1 = 0x72u;
+    public static enum ulong INT_KERNEL_SWINT = 0x80u;
     public static enum ulong INT_APIC_SPURIOUS = 0xFFu;
 
     struct idtr_t