diff --git a/iped-engine/src/main/java/iped/engine/task/ParsingTask.java b/iped-engine/src/main/java/iped/engine/task/ParsingTask.java
index b4c1136cb5..b9ebd8c8b8 100644
--- a/iped-engine/src/main/java/iped/engine/task/ParsingTask.java
+++ b/iped-engine/src/main/java/iped/engine/task/ParsingTask.java
@@ -554,7 +554,9 @@ public void parseEmbedded(InputStream inputStream, ContentHandler handler, Metad
             evidence.setHasChildren(true);
 
             // protection for future concurrent access, see #794
-            metadata = new SyncMetadata(metadata);
+            if (!(metadata instanceof SyncMetadata)) {
+                metadata = new SyncMetadata(metadata);
+            }
             subItem.setMetadata(metadata);
 
             boolean updateInputStream = false;