diff --git a/models/cpvalue.json b/models/cpvalue.json
index fc9befc..4122e63 100644
--- a/models/cpvalue.json
+++ b/models/cpvalue.json
@@ -25,7 +25,8 @@
             "name": "cpval",
             "title": "算力值",
             "type": "float",
-            "length": 18
+            "length": 18,
+            "dec": 2
         },
         {
             "name": "cpunit",