diff --git a/libraries/DigisparkKeyboard/DigiKeyboard.h b/libraries/DigisparkKeyboard/DigiKeyboard.h
index f6ab533..c0e7022 100644
--- a/libraries/DigisparkKeyboard/DigiKeyboard.h
+++ b/libraries/DigisparkKeyboard/DigiKeyboard.h
@@ -110,7 +110,9 @@ PROGMEM char usbHidReportDescriptor[USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH] = { /*
 #define KEY_0       39
 
 #define KEY_ENTER   40
-
+#define KEY_ESC     41
+#define KEY_BACKSPACE 42
+#define KEY_TAB     43
 #define KEY_SPACE   44
 
 #define KEY_F1      58
@@ -125,7 +127,8 @@ PROGMEM char usbHidReportDescriptor[USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH] = { /*
 #define KEY_F10     67
 #define KEY_F11     68
 #define KEY_F12     69
-
+#define KEY_PRT_SCR 70
+#define KEY_DELETE  76
 #define KEY_ARROW_LEFT 0x50