diff --git a/aliyun-java-sdk-eci/src/main/java/com/aliyuncs/eci/model/v20180808/DescribeAvailableResourceRequest.java b/aliyun-java-sdk-eci/src/main/java/com/aliyuncs/eci/model/v20180808/DescribeAvailableResourceRequest.java
index 105f4bc80a..48c471a018 100644
--- a/aliyun-java-sdk-eci/src/main/java/com/aliyuncs/eci/model/v20180808/DescribeAvailableResourceRequest.java
+++ b/aliyun-java-sdk-eci/src/main/java/com/aliyuncs/eci/model/v20180808/DescribeAvailableResourceRequest.java
@@ -64,9 +64,9 @@ public SpotAvailableResource getSpotResource() {
     public void setSpotResource(SpotAvailableResource spotResource) {
         this.spotResource = spotResource;
         if (null != spotResource) {
-            putQueryParameter("SpotAvailableResource.SpotStrategy", spotResource.getSpotStrategy());
-            putQueryParameter("SpotAvailableResource.SpotPriceLimit", spotResource.getSpotPriceLimit());
-            putQueryParameter("SpotAvailableResource.SpotDuration", spotResource.getSpotDuration());
+            putQueryParameter("SpotResource.SpotStrategy", spotResource.getSpotStrategy());
+            putQueryParameter("SpotResource.SpotPriceLimit", spotResource.getSpotPriceLimit());
+            putQueryParameter("SpotResource.SpotDuration", spotResource.getSpotDuration());
         }
     }