diff --git a/app/adminapi/logic/build/BuildProcessSettingsLogic.php b/app/adminapi/logic/build/BuildProcessSettingsLogic.php
index 10ce20a08..6b09277ee 100644
--- a/app/adminapi/logic/build/BuildProcessSettingsLogic.php
+++ b/app/adminapi/logic/build/BuildProcessSettingsLogic.php
@@ -47,7 +47,7 @@ class BuildProcessSettingsLogic extends BaseLogic
                 'process_step_no' => $params['process_step_no'],
                 'process_step' => $params['process_step'],
                 'quality_control_points' => $params['quality_control_points'],
-	            'file' => $params['file']? json_encode($params['file']) : null,
+	            'file' => !empty($params['file']) ? json_encode($params['file']) : null,
                 'add_user' => $admin_id,
                 'update_user' => $admin_id,
             ]);
@@ -77,7 +77,7 @@ class BuildProcessSettingsLogic extends BaseLogic
                 'process_step_no' => $params['process_step_no'],
                 'process_step' => $params['process_step'],
                 'quality_control_points' => $params['quality_control_points'],
-	            'file' => $params['file']? json_encode($params['file']) : null,
+	            'file' => !empty($params['file']) ? json_encode($params['file']) : null,
                 'update_user' => $admin_id,
 	            'update_time' => time(),
             ]);