diff --git a/api-openbis-javascript/src/v3/as/dto/importer/data/UncompressedImportData.js b/api-openbis-javascript/src/v3/as/dto/importer/data/UncompressedImportData.js
index 912dbcc892e297238f9c927e59126ea9c2777016..d23a7e9882d9bef3cb6758fa1b1bd85abfcec248 100644
--- a/api-openbis-javascript/src/v3/as/dto/importer/data/UncompressedImportData.js
+++ b/api-openbis-javascript/src/v3/as/dto/importer/data/UncompressedImportData.js
@@ -17,7 +17,8 @@
 
 define(["stjs", "as/dto/importer/data/IImportData"],
   function (stjs, IImportData) {
-    var UncompressedImportData = function(file, scripts) {
+    var UncompressedImportData = function(format, file, scripts) {
+      this.format = format;
       this.file = file;
       this.scripts = scripts;
     }
@@ -31,6 +32,10 @@ define(["stjs", "as/dto/importer/data/IImportData"],
 
         constructor.serialVersionUID = 1;
 
+        prototype.getFormat = function() {
+          return this.format;
+        };
+
         prototype.getFile = function() {
           return this.file;
         };