diff --git a/src/main/java/org/gcube/portlets/user/td/codelistmappingimportwidget/client/CodelistMappingFileUploadPanel.java b/src/main/java/org/gcube/portlets/user/td/codelistmappingimportwidget/client/CodelistMappingFileUploadPanel.java
index 5b2e349..577cec7 100644
--- a/src/main/java/org/gcube/portlets/user/td/codelistmappingimportwidget/client/CodelistMappingFileUploadPanel.java
+++ b/src/main/java/org/gcube/portlets/user/td/codelistmappingimportwidget/client/CodelistMappingFileUploadPanel.java
@@ -77,19 +77,18 @@ public class CodelistMappingFileUploadPanel extends FormPanel {
 				doLayout();
 			}
 		});
-		
+
 		StringBuilder actionUrl = new StringBuilder();
 		actionUrl.append(GWT.getModuleBaseURL());
-		actionUrl.append(Constants.CODELIST_MAPPING_UPLOAD_SERVLET);
+		actionUrl.append(Constants.CODELIST_MAPPING_UPLOAD_SERVLET + "?"
+				+ Constants.CURR_GROUP_ID + "="
+				+ GCubeClientContext.getCurrentContextId());
 		setAction(actionUrl.toString());
-		
+
 		Log.info("Start Upload action Url " + actionUrl.toString());
-		
-		
+
 		setWidth("100%");
-		
-	
-	
+
 		setEncoding(Encoding.MULTIPART);
 		setMethod(Method.POST);
 	}
@@ -98,13 +97,13 @@ public class CodelistMappingFileUploadPanel extends FormPanel {
 			final CodelistMappingSession codelistMappingSession) {
 		VerticalLayoutContainer content = new VerticalLayoutContainer();
 		content.setWidth("100%");
-		
+
 		Hidden currGroupID = new Hidden();
 		currGroupID.setName(Constants.CURR_GROUP_ID);
 		currGroupID.setValue(GCubeClientContext.getCurrentContextId());
-		
+
 		content.add(currGroupID);
-		
+
 		fileUploadField = new FileUploadField();
 		fileUploadField.setName("uploadFormElement");
 		fileUploadField.setWidth("100%");
@@ -151,10 +150,9 @@ public class CodelistMappingFileUploadPanel extends FormPanel {
 		btnCancel = new TextButton(msgs.btnCancelText());
 		btnCancel.hide();
 		content.add(btnCancel, new VerticalLayoutData(-1, -1));
-		
+
 		add(content);
 
-		
 		btnUpload.addSelectHandler(new SelectHandler() {
 
 			public void onSelect(SelectEvent event) {