diff --git a/fonts.js b/fonts.js
index 728bc5c68..99d6dd218 100644
--- a/fonts.js
+++ b/fonts.js
@@ -425,6 +425,7 @@ var Font = (function () {
       };
 
       function replaceCMapTable(cmap, font, properties) {
+        font.pos = cmap.length;
         var version = FontsUtils.bytesToInteger(font.getBytes(2));
         var numTables = FontsUtils.bytesToInteger(font.getBytes(2));