diff --git a/src/js/utils/serialization/arraybuffer/ArrayBufferSerializer.js b/src/js/utils/serialization/arraybuffer/ArrayBufferSerializer.js
index 4c1b3be0..d52fd9f4 100644
--- a/src/js/utils/serialization/arraybuffer/ArrayBufferSerializer.js
+++ b/src/js/utils/serialization/arraybuffer/ArrayBufferSerializer.js
@@ -42,7 +42,7 @@
    */
 
   ns.ArrayBufferSerializer = {
-    calculateRequiredBytes : function(piskel, framesData) {
+    calculateRequiredBytes : function(piskel, framesData, serializedHiddenFrames) {
       var width = piskel.getWidth();
       var height = piskel.getHeight();
       var descriptorNameLength = piskel.getDescriptor().name.length;
@@ -63,6 +63,9 @@
       // Layers meta
       bytes += 1 * 2;
 
+      // Frames meta
+      bytes += 1 * 2;
+
       /********/
       /* DATA */
       /********/
@@ -72,6 +75,9 @@
       // Descriptor description
       bytes += descriptorDescriptionLength * 2;
 
+      // Hidden frames
+      bytes += serializedHiddenFrames.length * 2;
+
       // Layers
       for (var i = 0, layers = piskel.getLayers(); i < layers.length; i++) {
         bytes += 5 * 2;