diff --git a/backend/src/main/java/io/metersphere/api/dto/definition/request/extract/MsExtract.java b/backend/src/main/java/io/metersphere/api/dto/definition/request/extract/MsExtract.java
index 1cfd86c207..3eca2e7a45 100644
--- a/backend/src/main/java/io/metersphere/api/dto/definition/request/extract/MsExtract.java
+++ b/backend/src/main/java/io/metersphere/api/dto/definition/request/extract/MsExtract.java
@@ -125,6 +125,7 @@ public class MsExtract extends MsTestElement {
         extractor.setProperty(TestElement.GUI_CLASS, SaveService.aliasToClass("JSONPostProcessorGui"));
         extractor.setRefNames(extractJSONPath.getVariable());
         extractor.setJsonPathExpressions(extractJSONPath.getExpression());
+        extractor.setComputeConcatenation(true);
         if (extractJSONPath.isMultipleMatching()) {
             extractor.setMatchNumbers("-1");
         }