diff --git a/console.c b/console.c
index b7fd56e..a6dfac2 100644
--- a/console.c
+++ b/console.c
@@ -7,7 +7,6 @@
 #include "mmu.h"
 #include "proc.h"
 #include "x86.h"
-#include "kbd.h"
 
 #define CRTPORT 0x3d4
 #define LPTPORT 0x378
@@ -186,6 +185,8 @@ struct {
   int e;  // Edit index
 } input;
 
+#define C(x)  ((x)-'@')  // Control-x
+
 void
 console_intr(int (*getc)(void))
 {