diff --git a/kaleid/kernel/io/scan.c b/kaleid/kernel/io/scan.c
index d1ac08f..89d61a9 100644
--- a/kaleid/kernel/io/scan.c
+++ b/kaleid/kernel/io/scan.c
@@ -96,6 +96,11 @@ const uint RegularScanCodes[2 * 256] =
     ENTRY (0x35,    '!',    CAPSLOCK),
 
     ENTRY (0x39,    ' ',    NONE),
+    
+    ENTRY (0x48,    KEY_DC1,    INVISIBLE),         // UP arrow
+    ENTRY (0x4B,    KEY_DC3,    INVISIBLE),         // LEFT arrow
+    ENTRY (0x4D,    KEY_DC4,    INVISIBLE),         // RIGHT arrow
+    ENTRY (0x50,    KEY_DC2,    INVISIBLE),         // DOWN arrow
 };
 
 const uint LeftShiftScanCodes[2 * 256] =
diff --git a/kaleid/kernel/sh/shell.c b/kaleid/kernel/sh/shell.c
index c9d16ce..a22685f 100644
--- a/kaleid/kernel/sh/shell.c
+++ b/kaleid/kernel/sh/shell.c
@@ -125,7 +125,6 @@ void ShStartShell(void)
             break;
             
         default:
-
             IoSetScroll(1);
             IoScrollDown();