diff --git a/doc/design/var_desc.md b/doc/design/var_desc.md
index 9175d1519313bc55afeb7930cd79c0c97be9e359..668f06798408deaeaa261242c50f374489c8c0d2 100644
--- a/doc/design/var_desc.md
+++ b/doc/design/var_desc.md
@@ -36,7 +36,7 @@ message LoDTensorDesc {
     INT64 = 3;
     FP16 = 4;
     FP32 = 5;
-    FP64 = 6
+    FP64 = 6;
   }
 
   Type data_type = 1;