diff --git a/src/BrailleBuffer.coffee b/src/BrailleBuffer.coffee
index 870cbca..643cb0e 100644
--- a/src/BrailleBuffer.coffee
+++ b/src/BrailleBuffer.coffee
@@ -19,14 +19,14 @@ module.exports = class BrailleBuffer
   brailleMap: [[0x1, 0x8],[0x2, 0x10],[0x4, 0x20],[0x40, 0x80]]
   asciiMap:
     # "▬": [2+32, 4+64]
-    # "▌": [1+2+4+8]
-    # "▐": [16+32+64+128]
-    #"¯": [1+16]
+    # "¯": [1+16]
     "▀": [1+2+16+32]
     "▄": [4+8+64+128]
     "■": [2+4+32+64]
+    "▌": [1+2+4+8]
+    "▐": [16+32+64+128]
+    # "▓": [1+4+32+128, 2+8+16+64]
     "█": [255]
-    #"▓": [1+4+32+128, 2+8+16+64]
 
   pixelBuffer: null
   charBuffer: null
@@ -88,8 +88,10 @@ module.exports = class BrailleBuffer
       masks.push mask: mask, char: char for mask in bits
 
     for i in [1..255]
+      braille = (i&7) + ((i&56)<<1) + ((i&64)>>3) + (i&128)
+
       @asciiToBraille[i] = masks.reduce(((best, mask) ->
-        covered = utils.population mask.mask&i
+        covered = utils.population(mask.mask&braille)
         if not best or best.covered < covered
           char: mask.char, covered: covered
         else