diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/SWF.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/SWF.java
index 0f372290a..66c5a741e 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/SWF.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/SWF.java
@@ -1172,6 +1172,8 @@ public final class SWF implements SWFContainerItem, Timelined {
             }
         }
 
+        
+        headerModified = false;
         isModified = false;
 
         try {