diff --git a/src/main/java/org/gcube/portlets/user/td/widgetcommonevent/shared/thumbnail/ThumbnailTD.java b/src/main/java/org/gcube/portlets/user/td/widgetcommonevent/shared/thumbnail/ThumbnailTD.java
index 8e12d40..39ff43a 100644
--- a/src/main/java/org/gcube/portlets/user/td/widgetcommonevent/shared/thumbnail/ThumbnailTD.java
+++ b/src/main/java/org/gcube/portlets/user/td/widgetcommonevent/shared/thumbnail/ThumbnailTD.java
@@ -2,8 +2,6 @@ package org.gcube.portlets.user.td.widgetcommonevent.shared.thumbnail;
 
 import java.io.Serializable;
 
-import org.gcube.portlets.user.td.widgetcommonevent.shared.mime.MimeTypeSupport;
-
 /**
  * Thumbnail for Tabular Data Manager
  * 
@@ -15,13 +13,13 @@ public class ThumbnailTD implements Serializable {
 	private static final long serialVersionUID = 897893891284145975L;
 
 	private String url;
-	private MimeTypeSupport mimeType;
+	private String mimeType;
 
 	public ThumbnailTD() {
 
 	}
 
-	public ThumbnailTD(String url, MimeTypeSupport mimeType) {
+	public ThumbnailTD(String url, String mimeType) {
 		super();
 		this.url = url;
 		this.mimeType = mimeType;
@@ -35,11 +33,11 @@ public class ThumbnailTD implements Serializable {
 		this.url = url;
 	}
 
-	public MimeTypeSupport getMimeType() {
+	public String getMimeType() {
 		return mimeType;
 	}
 
-	public void setMimeType(MimeTypeSupport mimeType) {
+	public void setMimeType(String mimeType) {
 		this.mimeType = mimeType;
 	}