diff --git a/api-web/api-interface/src/main/java/com/heyu/api/controller/car/RecognizeDrivingLicenseController.java b/api-web/api-interface/src/main/java/com/heyu/api/controller/car/RecognizeDrivingLicenseController.java
index 7d48742..9e071e9 100644
--- a/api-web/api-interface/src/main/java/com/heyu/api/controller/car/RecognizeDrivingLicenseController.java
+++ b/api-web/api-interface/src/main/java/com/heyu/api/controller/car/RecognizeDrivingLicenseController.java
@@ -72,7 +72,7 @@ public class RecognizeDrivingLicenseController extends BaseController {
             return "detectDirection 必须传 " + ApiConstants.trueOrFalse + ",false：不进行图像方向自动矫正, true: 开启图像方向自动矫正功能，可对旋转 90/180/270 度的图片进行自动矫正并识别";
         }
         if (checkNotFrontBack(request.getVehicleLicenseSide())) {
-            return "vehicleLicenseSide 必须传 " + ApiConstants.frontOrback + ",front：正向， back反面";
+            return "front 必须传 " + ApiConstants.frontOrback + ",front：正向， back反面";
         }
         if (checkNotTrueFalse(request.getUnified())) {
             return "unified必须为 " + ApiConstants.trueOrFalse + ", false 不进行归一化处理, rue：对输出字段进行归一化处理，将新/老版行驶证的“注册登记日期/注册日期”统一为”注册日期“进行输出";
diff --git a/api-web/api-interface/src/main/java/com/heyu/api/request/car/VehicleLicenseRequest.java b/api-web/api-interface/src/main/java/com/heyu/api/request/car/VehicleLicenseRequest.java
index 445fad1..0857453 100644
--- a/api-web/api-interface/src/main/java/com/heyu/api/request/car/VehicleLicenseRequest.java
+++ b/api-web/api-interface/src/main/java/com/heyu/api/request/car/VehicleLicenseRequest.java
@@ -36,7 +36,7 @@ public class VehicleLicenseRequest {
      * - front：默认值，识别行驶证主页
      * - back：识别行驶证副页
      */
-    private String  side;
+    private String side = "front";