diff --git a/readchar/key.py b/readchar/key.py
index 8fb83da..c7d4df5 100644
--- a/readchar/key.py
+++ b/readchar/key.py
@@ -2,7 +2,7 @@
 LF = "\x0d"
 CR = "\x0a"
 ENTER = "\x0d"
-BACKSPACE = "\x7f"
+BACKSPACE = "\x08"
 SUPR = ""
 SPACE = "\x20"
 ESC = "\x1b"
diff --git a/readchar/readchar.py b/readchar/readchar.py
index fc35429..5c1a75d 100644
--- a/readchar/readchar.py
+++ b/readchar/readchar.py
@@ -53,10 +53,10 @@
         20960: key.PAGE_DOWN,
         18400: key.HOME,
         20448: key.END,
-        18656: key.UP,
-        20704: key.DOWN,
-        19424: key.LEFT,
-        19936: key.RIGHT,
+        18432: key.UP,      # 72 * 256
+        20480: key.DOWN,    # 80 * 256
+        19200: key.LEFT,    # 75 * 256
+        19712: key.RIGHT,   # 77 * 256
     }
 
     def readkey(getchar_fn=None):