diff --git a/src/main/java/org/gcube/data_catalogue/grsf_publish_ws/json/input/record/FisheryRecord.java b/src/main/java/org/gcube/data_catalogue/grsf_publish_ws/json/input/record/FisheryRecord.java
index a72e90e..de92259 100644
--- a/src/main/java/org/gcube/data_catalogue/grsf_publish_ws/json/input/record/FisheryRecord.java
+++ b/src/main/java/org/gcube/data_catalogue/grsf_publish_ws/json/input/record/FisheryRecord.java
@@ -118,7 +118,7 @@ public class FisheryRecord extends Common{
 		String fisheryIdmodified = "";
 		if(fisheryId != null){
 			
-			String[] splitCodesValues = fisheryId.split("+");
+			String[] splitCodesValues = fisheryId.split("\\+");
 			for (int i = 0; i < splitCodesValues.length; i++) {
 				String prefixAndCode = splitCodesValues[i];
 				String prefix = prefixAndCode.split(":")[0];
diff --git a/src/main/java/org/gcube/data_catalogue/grsf_publish_ws/json/input/record/StockRecord.java b/src/main/java/org/gcube/data_catalogue/grsf_publish_ws/json/input/record/StockRecord.java
index c6df2a2..139b768 100644
--- a/src/main/java/org/gcube/data_catalogue/grsf_publish_ws/json/input/record/StockRecord.java
+++ b/src/main/java/org/gcube/data_catalogue/grsf_publish_ws/json/input/record/StockRecord.java
@@ -184,7 +184,7 @@ public class StockRecord extends Common{
 		String stockIdmodified = "";
 		if(stockId != null){
 			
-			String[] splitCodesValues = stockId.split("+");
+			String[] splitCodesValues = stockId.split("\\+");
 			for (int i = 0; i < splitCodesValues.length; i++) {
 				String prefixAndCode = splitCodesValues[i];
 				String prefix = prefixAndCode.split(":")[0];