diff --git a/crates/swc/src/config/mod.rs b/crates/swc/src/config/mod.rs
index 60a8036f6f82..f48ff94f6386 100644
--- a/crates/swc/src/config/mod.rs
+++ b/crates/swc/src/config/mod.rs
@@ -943,7 +943,7 @@ pub struct JsMinifyFormatOptions {
     #[serde(default)]
     pub braces: bool,
 
-    #[serde(default)]
+    #[serde(default = "default_comments")]
     pub comments: BoolOrDataConfig<JsMinifyCommentOption>,
 
     /// Not implemented yet.
@@ -1015,6 +1015,10 @@ pub struct JsMinifyFormatOptions {
     pub wrap_func_args: bool,
 }
 
+fn default_comments() -> BoolOrDataConfig<JsMinifyCommentOption> {
+    BoolOrDataConfig::from_obj(JsMinifyCommentOption::PreserveSomeComments)
+}
+
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub enum JsMinifyCommentOption {
     #[serde(rename = "some")]