diff --git a/src/main/java/eu/eudat/commonmodels/models/FileEnvelopeModel.java b/src/main/java/eu/eudat/commonmodels/models/FileEnvelopeModel.java
index e391447..400963b 100644
--- a/src/main/java/eu/eudat/commonmodels/models/FileEnvelopeModel.java
+++ b/src/main/java/eu/eudat/commonmodels/models/FileEnvelopeModel.java
@@ -3,6 +3,7 @@ package eu.eudat.commonmodels.models;
 public class FileEnvelopeModel {
     private String filename;
     private String fileRef;
+    private String mimeType;
     private byte[] file;
 
     public String getFilename() {
@@ -28,4 +29,12 @@ public class FileEnvelopeModel {
     public void setFileRef(String fileRef) {
         this.fileRef = fileRef;
     }
+
+    public String getMimeType() {
+        return mimeType;
+    }
+
+    public void setMimeType(String mimeType) {
+        this.mimeType = mimeType;
+    }
 }
diff --git a/src/main/java/eu/eudat/commonmodels/models/description/FieldModel.java b/src/main/java/eu/eudat/commonmodels/models/description/FieldModel.java
index 700245f..307797f 100644
--- a/src/main/java/eu/eudat/commonmodels/models/description/FieldModel.java
+++ b/src/main/java/eu/eudat/commonmodels/models/description/FieldModel.java
@@ -1,5 +1,6 @@
 package eu.eudat.commonmodels.models.description;
 
+import eu.eudat.commonmodels.models.FileEnvelopeModel;
 import eu.eudat.commonmodels.models.reference.ReferenceModel;
 
 import java.time.Instant;
@@ -9,6 +10,7 @@ public class FieldModel {
 
     private String id;
     private String textValue;
+    private FileEnvelopeModel file;
 
     private List<String> textListValue;
 
@@ -65,5 +67,12 @@ public class FieldModel {
     public void setExternalIdentifier(ExternalIdentifierModel externalIdentifier) {
         this.externalIdentifier = externalIdentifier;
     }
-    
+
+    public FileEnvelopeModel getFile() {
+        return file;
+    }
+
+    public void setFile(FileEnvelopeModel file) {
+        this.file = file;
+    }
 }