diff --git a/lib/diakonos/keying.rb b/lib/diakonos/keying.rb
index 57c2f755..0e867c86 100644
--- a/lib/diakonos/keying.rb
+++ b/lib/diakonos/keying.rb
@@ -2,50 +2,41 @@ module Diakonos
   module Keying
 
     KEYSTRINGS = [
-        "ctrl+space",   # 0
-        "ctrl+a",       # 1
-        "ctrl+b",       # 2
-        "ctrl+c",       # 3
-        "ctrl+d",       # 4
-        "ctrl+e",       # 5
-        "ctrl+f",       # 6
-        "ctrl+g",       # 7
-        nil,            # 8
-        "tab",          # 9
-        "ctrl+j",       # 10
-        "ctrl+k",       # 11
-        "ctrl+l",       # 12
-        "enter",        # 13
-        "ctrl+n",       # 14
-        "ctrl+o",       # 15
-        "ctrl+p",       # 16
-        "ctrl+q",       # 17
-        "ctrl+r",       # 18
-        "ctrl+s",       # 19
-        "ctrl+t",       # 20
-        "ctrl+u",       # 21
-        "ctrl+v",       # 22
-        "ctrl+w",       # 23
-        "ctrl+x",       # 24
-        "ctrl+y",       # 25
-        "ctrl+z",       # 26
-        "esc",          # 27
-        nil,            # 28
-        nil,            # 29
-        nil,            # 30
-        nil,            # 31
-        "space",        # 32
-        33.chr, 34.chr, 35.chr, 36.chr, 37.chr, 38.chr, 39.chr,
-        40.chr, 41.chr, 42.chr, 43.chr, 44.chr, 45.chr, 46.chr, 47.chr, 48.chr, 49.chr,
-        50.chr, 51.chr, 52.chr, 53.chr, 54.chr, 55.chr, 56.chr, 57.chr, 58.chr, 59.chr,
-        60.chr, 61.chr, 62.chr, 63.chr, 64.chr, 65.chr, 66.chr, 67.chr, 68.chr, 69.chr,
-        70.chr, 71.chr, 72.chr, 73.chr, 74.chr, 75.chr, 76.chr, 77.chr, 78.chr, 79.chr,
-        80.chr, 81.chr, 82.chr, 83.chr, 84.chr, 85.chr, 86.chr, 87.chr, 88.chr, 89.chr,
-        90.chr, 91.chr, 92.chr, 93.chr, 94.chr, 95.chr, 96.chr, 97.chr, 98.chr, 99.chr,
-        100.chr, 101.chr, 102.chr, 103.chr, 104.chr, 105.chr, 106.chr, 107.chr, 108.chr, 109.chr,
-        110.chr, 111.chr, 112.chr, 113.chr, 114.chr, 115.chr, 116.chr, 117.chr, 118.chr, 119.chr,
-        120.chr, 121.chr, 122.chr, 123.chr, 124.chr, 125.chr, 126.chr,
-        "backspace"    # 127
+      "ctrl+space",   # 0
+      "ctrl+a",       # 1
+      "ctrl+b",       # 2
+      "ctrl+c",       # 3
+      "ctrl+d",       # 4
+      "ctrl+e",       # 5
+      "ctrl+f",       # 6
+      "ctrl+g",       # 7
+      nil,            # 8
+      "tab",          # 9
+      "ctrl+j",       # 10
+      "ctrl+k",       # 11
+      "ctrl+l",       # 12
+      "enter",        # 13
+      "ctrl+n",       # 14
+      "ctrl+o",       # 15
+      "ctrl+p",       # 16
+      "ctrl+q",       # 17
+      "ctrl+r",       # 18
+      "ctrl+s",       # 19
+      "ctrl+t",       # 20
+      "ctrl+u",       # 21
+      "ctrl+v",       # 22
+      "ctrl+w",       # 23
+      "ctrl+x",       # 24
+      "ctrl+y",       # 25
+      "ctrl+z",       # 26
+      "esc",          # 27
+      nil,            # 28
+      nil,            # 29
+      nil,            # 30
+      nil,            # 31
+      "space",        # 32
+    ] + (33..126).map(&:chr) + [
+      "backspace"    # 127
     ]
 
     def self.keycodes_for( str )