diff --git a/dhp-workflows/dhp-usage-stats-update/src/main/java/eu/dnetlib/oa/graph/usagestats/export/SarcStats.java b/dhp-workflows/dhp-usage-stats-update/src/main/java/eu/dnetlib/oa/graph/usagestats/export/SarcStats.java
index 994bea063..98d869775 100644
--- a/dhp-workflows/dhp-usage-stats-update/src/main/java/eu/dnetlib/oa/graph/usagestats/export/SarcStats.java
+++ b/dhp-workflows/dhp-usage-stats-update/src/main/java/eu/dnetlib/oa/graph/usagestats/export/SarcStats.java
@@ -11,6 +11,7 @@ import java.sql.ResultSet;
 import java.sql.Statement;
 import java.text.SimpleDateFormat;
 import java.util.Calendar;
+import java.util.HashSet;
 import java.util.Set;
 
 import org.apache.hadoop.conf.Configuration;
@@ -187,15 +188,9 @@ public class SarcStats {
 			for (Object aJsonArray : jsonArray) {
 
 				JSONObject jsonObjectRow = (JSONObject) aJsonArray;
-
-				Set<String> jkeys = jsonObjectRow.keySet();
-				for (String jkey : jkeys) {
-					System.out.println("++++> " + jkey);
-					String[] splitArray = jkey.split("c:");
-					jkey = splitArray[splitArray.length - 1];
-					System.out.println("New jkey: " + jkey);
-				}
-
+				renameKeysRecursively("c:", jsonObjectRow);
+				System.out.println("oooo====> " + jsonObjectRow.toJSONString());
+				
 				fin.write(jsonObjectRow.toJSONString().getBytes());
 				fin.writeChar('\n');
 			}
@@ -259,6 +254,40 @@ public class SarcStats {
 		ConnectDB.getConnection().close();
 
 	}
+	
+	private void renameKeysRecursively(String prefixToRemove, JSONArray givenJsonObj) throws Exception {
+		for(Object jjval : givenJsonObj) {
+			if(jjval instanceof JSONArray)
+				renameKeysRecursively(prefixToRemove, (JSONArray)jjval);
+			else if(jjval instanceof JSONObject)
+				renameKeysRecursively(prefixToRemove, (JSONObject)jjval);
+			// All other types of vals
+			else; 
+		}
+	}
+	
+	private void renameKeysRecursively(String prefixToRemove, JSONObject givenJsonObj) throws Exception {
+		Set<String> jkeys = new HashSet<String>(givenJsonObj.keySet());
+		for (String jkey : jkeys) {
+			System.out.println("++++> " + jkey);
+			
+			String[] splitArray = jkey.split(prefixToRemove);
+			String newJkey = splitArray[splitArray.length - 1];
+			System.out.println("New jkey: " + jkey);
+			
+			Object jval = givenJsonObj.get(jkey);
+			System.out.println("jval ===> " + jval.getClass().getName());
+			givenJsonObj.remove(jkey);
+			givenJsonObj.put(newJkey, jval);
+			
+			if(jval instanceof JSONObject)
+				renameKeysRecursively(prefixToRemove, (JSONObject)jval);
+			
+			if(jval instanceof JSONArray) {
+				renameKeysRecursively(prefixToRemove, (JSONArray)jval);
+			}
+		}
+	}
 
 	private String getJson(String url) throws Exception {
 		// String cred=username+":"+password;