1 files changed, 1 insertions, 0 deletions
diff --git a/traps.h b/traps.h
index b69edd2..6476bbe 100644
--- a/traps.h
+++ b/traps.h
@@ -31,6 +31,7 @@
 
 #define IRQ_TIMER        0
 #define IRQ_KBD          1
+#define IRQ_COM1         4
 #define IRQ_IDE         14
 #define IRQ_ERROR       19
 #define IRQ_SPURIOUS    31