diff --git a/src/com/engine/salary/entity/taxdeclaration/bo/TaxDeclarationBO.java b/src/com/engine/salary/entity/taxdeclaration/bo/TaxDeclarationBO.java
index e9500c680..091af8916 100644
--- a/src/com/engine/salary/entity/taxdeclaration/bo/TaxDeclarationBO.java
+++ b/src/com/engine/salary/entity/taxdeclaration/bo/TaxDeclarationBO.java
@@ -722,6 +722,7 @@ public class TaxDeclarationBO {
     private static String findStringValue(String fieldCode, Map<Long, List<SalaryAcctResultPO>> resultMap, Map<String, Long> salaryItemMap) {
         return resultMap.getOrDefault(salaryItemMap.getOrDefault(fieldCode, 0L), Collections.emptyList()).stream()
                 .map(SalaryAcctResultPO::getResultValue)
+                .filter(Objects::nonNull)
                 .findFirst().orElse("");
     }