diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/avm2/AVM2Code.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/avm2/AVM2Code.java
index 0a675f2c1..5ac100318 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/avm2/AVM2Code.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/abc/avm2/AVM2Code.java
@@ -1033,6 +1033,14 @@ public class AVM2Code implements Cloneable {
         return bos.toByteArray();
     }
 
+    public void markOffsets() {
+        long offset = 0;
+        for (int i = 0; i < code.size(); i++) {
+            code.get(i).offset = offset;
+            offset += code.get(i).getBytesLength();
+        }
+    }
+
     @Override
     public String toString() {
         StringBuilder s = new StringBuilder();