diff --git a/sea-orm-codegen/src/entity/writer.rs b/sea-orm-codegen/src/entity/writer.rs
index b94b9aa5e0..60dfbf5cf1 100644
--- a/sea-orm-codegen/src/entity/writer.rs
+++ b/sea-orm-codegen/src/entity/writer.rs
@@ -60,10 +60,14 @@ pub enum BigIntegerType {
 
 #[derive(Debug, Default, PartialEq, Eq, Copy, Clone)]
 pub enum EntityFormat {
-    #[default]
+    /// Entity format in 1.0
     Compact,
+    /// Expanded format is considered legacy
     Expanded,
+    /// Generated models on the client without dependency
     Frontend,
+    /// Entity format in 2.0 (default)
+    #[default]
     Dense,
 }