diff --git a/app/Extend/SystemUtil.php b/app/Extend/SystemUtil.php
index f98971c..d53a0c2 100644
--- a/app/Extend/SystemUtil.php
+++ b/app/Extend/SystemUtil.php
@@ -72,9 +72,9 @@ class SystemUtil
 
         // 提取经纬度
         $lat1 = deg2rad($locationOneArr['lat']);
-        $lon1 = deg2rad($locationOneArr['lon']);
+        $lon1 = deg2rad($locationOneArr['lng']);
         $lat2 = deg2rad($locationTwoArr['lat']);
-        $lon2 = deg2rad($locationTwoArr['lon']);
+        $lon2 = deg2rad($locationTwoArr['lng']);
 
         // 计算距离
         $dLat = $lat2 - $lat1;