diff --git a/dspace-api/src/main/java/org/dspace/content/PreviewContentServiceImpl.java b/dspace-api/src/main/java/org/dspace/content/PreviewContentServiceImpl.java
index 676e76cbb874..be21988c968c 100644
--- a/dspace-api/src/main/java/org/dspace/content/PreviewContentServiceImpl.java
+++ b/dspace-api/src/main/java/org/dspace/content/PreviewContentServiceImpl.java
@@ -201,7 +201,7 @@ public PreviewContent createPreviewContent(Context context, Bitstream bitstream,
     @Override
     public FileInfo createFileInfo(PreviewContent pc) {
         Hashtable<String, FileInfo> sub = createSubMap(pc.sub, this::createFileInfo);
-        return new FileInfo(pc.name, pc.content, pc.size, pc.isDirectory, sub);
+        return new FileInfo(pc.name, pc.content, pc.size, pc.isDirectory);
     }
 
     @Override
diff --git a/dspace-api/src/main/java/org/dspace/util/FileInfo.java b/dspace-api/src/main/java/org/dspace/util/FileInfo.java
index fa9e75a06f6e..875a33ef9dcd 100644
--- a/dspace-api/src/main/java/org/dspace/util/FileInfo.java
+++ b/dspace-api/src/main/java/org/dspace/util/FileInfo.java
@@ -22,12 +22,11 @@ public class FileInfo {
 
     public Hashtable<String, FileInfo> sub = null;
 
-    public FileInfo(String name, String content, String size, boolean isDirectory, Hashtable<String, FileInfo> sub) {
+    public FileInfo(String name, String content, String size, boolean isDirectory) {
         this.name = name;
         this.content = content;
         this.size = size;
         this.isDirectory = isDirectory;
-        this.sub = sub;
     }
 
     public FileInfo(String name) {
@@ -45,4 +44,8 @@ public FileInfo(String name, String size) {
         this.size = size;
         isDirectory = false;
     }
+
+    public void setSub(Hashtable<String, FileInfo> sub) {
+        this.sub = sub;
+    }
 }