diff --git a/src/main/java/org/gcube/data/analysis/nlphub/NLPUploader.java b/src/main/java/org/gcube/data/analysis/nlphub/NLPUploader.java
index c7318d7..61b8b9e 100644
--- a/src/main/java/org/gcube/data/analysis/nlphub/NLPUploader.java
+++ b/src/main/java/org/gcube/data/analysis/nlphub/NLPUploader.java
@@ -144,11 +144,11 @@ public class NLPUploader extends HttpServlet {
 			String stringContent = new String(bufferedContent);
 			stringContent = NlpUtils.replaceDirtyCharacters(stringContent);
 
-			ws.deleteFile(fileName);
+			
 
 			if (!ws.uploadFile(stringContent.getBytes(), fileName, Constants.DEFAULT_DESCRIPTION)) {
 				writer.println(new JsonManager().getErrorJsonResponse(
-						"Error uploading file. A file called '" + fileName + "' is already in the workspace?"));
+						"Error uploading file called '" + fileName + "'. "));
 				return;
 			}