diff --git a/kaleid/kernel/cpu/idt.c b/kaleid/kernel/cpu/idt.c
index 4f3ca1e..37a7548 100644
--- a/kaleid/kernel/cpu/idt.c
+++ b/kaleid/kernel/cpu/idt.c
@@ -155,8 +155,8 @@ static void EnablePIC(void)
     IoWriteByteOnPort(0xa0, 0x11);
 
     // Set ICW2 (IRQ base offsets)
-    IoWriteByteOnPort(0x21, 0x20); //0x20 is the first free interrupt
-    IoWriteByteOnPort(0xa1, 0x28);
+    IoWriteByteOnPort(0x21, 0x20); //0x20 is the first free interrupt for IRQ0
+    IoWriteByteOnPort(0xa1, 0x28); // PIC2 is offseted to 0x28
 
     // Set ICW3
     IoWriteByteOnPort(0x21, 0x4);