diff --git a/src/backend/ci/core/process/biz-base/src/main/kotlin/com/tencent/devops/process/dao/PipelineSettingVersionDao.kt b/src/backend/ci/core/process/biz-base/src/main/kotlin/com/tencent/devops/process/dao/PipelineSettingVersionDao.kt
index 339dbdcb891..0991b83670a 100644
--- a/src/backend/ci/core/process/biz-base/src/main/kotlin/com/tencent/devops/process/dao/PipelineSettingVersionDao.kt
+++ b/src/backend/ci/core/process/biz-base/src/main/kotlin/com/tencent/devops/process/dao/PipelineSettingVersionDao.kt
@@ -100,7 +100,7 @@ class PipelineSettingVersionDao {
                     JsonUtil.toJson(self, false)
                 },
                 version,
-                setting.maxConRunningQueueSize
+                setting.maxConRunningQueueSize ?: -1
             ).onDuplicateKeyUpdate()
                 .set(NAME, setting.pipelineName)
                 .set(DESC, setting.desc)