diff --git a/src/language/lexer.js b/src/language/lexer.js
index c28f18d95c..5fcf265941 100644
--- a/src/language/lexer.js
+++ b/src/language/lexer.js
@@ -289,7 +289,6 @@ function readNumber(source, start, firstCode) {
       code = charCodeAt.call(body, ++position);
     }
     position = readDigits(source, position, code);
-    code = charCodeAt.call(body, position);
   }
 
   return makeToken(