diff --git a/lib/binaryParser.js b/lib/binaryParser.js
index 3231597c..ed2de933 100644
--- a/lib/binaryParser.js
+++ b/lib/binaryParser.js
@@ -23,7 +23,7 @@ var parseBits = function(data, bits, offset, callback) {
     }
 
     var result = 0;
-    if ((offset % 8) + bits > 8) {
+    if ((offset % 8) + bits >= 8) {
         result = callback(0, data[offsetBytes] & mask, firstBits);
     }