diff --git a/dump/src/main/java/eu/dnetlib/dhp/oa/common/MakeTarArchive.java b/dump/src/main/java/eu/dnetlib/dhp/oa/common/MakeTarArchive.java
index 20058bc..b953d29 100644
--- a/dump/src/main/java/eu/dnetlib/dhp/oa/common/MakeTarArchive.java
+++ b/dump/src/main/java/eu/dnetlib/dhp/oa/common/MakeTarArchive.java
@@ -10,6 +10,7 @@ import java.util.Optional;
 import org.apache.commons.compress.archivers.tar.TarArchiveEntry;
 import org.apache.commons.compress.archivers.tar.TarArchiveOutputStream;
 import org.apache.commons.io.IOUtils;
+import org.apache.commons.lang.StringUtils;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.*;
 import org.slf4j.Logger;
@@ -20,6 +21,8 @@ import eu.dnetlib.dhp.application.ArgumentApplicationParser;
 public class MakeTarArchive implements Serializable {
 
 	private static final Logger log = LoggerFactory.getLogger(MakeTarArchive.class);
+	private static int index = 1;
+	private static String prevname = new String();
 
 	public static void main(String[] args) throws Exception {
 		String jsonConfiguration = IOUtils
@@ -156,10 +159,18 @@ public class MakeTarArchive implements Serializable {
 			String name = pString.substring(pString.lastIndexOf("/") + 1);
 			if (name.startsWith("part-") & name.length() > 10) {
 				String tmp = name.substring(0, 10);
+				if (prevname.equalsIgnoreCase(tmp)) {
+					tmp = tmp + "_" + index;
+					index += 1;
+				} else {
+					prevname = tmp;
+					index = 1;
+				}
 				if (name.contains(".")) {
 					tmp += name.substring(name.indexOf("."));
 				}
 				name = tmp;
+
 			}
 			if (rename) {
 				if (name.endsWith(".txt.gz"))