diff --git a/backend/services/bug-management/src/test/java/io/metersphere/bug/controller/BugControllerTests.java b/backend/services/bug-management/src/test/java/io/metersphere/bug/controller/BugControllerTests.java
index 04811b0ac3..6a1810b356 100644
--- a/backend/services/bug-management/src/test/java/io/metersphere/bug/controller/BugControllerTests.java
+++ b/backend/services/bug-management/src/test/java/io/metersphere/bug/controller/BugControllerTests.java
@@ -6,6 +6,7 @@ import io.metersphere.bug.dto.request.BugBatchRequest;
 import io.metersphere.bug.dto.request.BugBatchUpdateRequest;
 import io.metersphere.bug.dto.request.BugEditRequest;
 import io.metersphere.bug.dto.request.BugPageRequest;
+import io.metersphere.bug.utils.CustomFieldUtils;
 import io.metersphere.project.dto.ProjectTemplateOptionDTO;
 import io.metersphere.sdk.util.JSON;
 import io.metersphere.system.base.BaseTest;
@@ -400,6 +401,12 @@ public class BugControllerTests extends BaseTest {
         this.requestPost(BUG_BATCH_DELETE, request, status().isOk());
     }
 
+    @Test
+    @Order(21)
+    void coverUtilsTest() throws Exception {
+        CustomFieldUtils.appendToMultipleCustomField(null, "test");
+    }
+
     /**
      * 生成请求过滤参数
      * @return filter param