diff --git a/kclvm/sema/src/pre_process/config.rs b/kclvm/sema/src/pre_process/config.rs
index d3cff8c6e..d5668fd7d 100644
--- a/kclvm/sema/src/pre_process/config.rs
+++ b/kclvm/sema/src/pre_process/config.rs
@@ -12,11 +12,30 @@ impl ConfigNestAttrTransformer {
     pub fn walk_config_entry(&mut self, config_entry: &mut Box<ast::Node<ast::ConfigEntry>>) {
         if let Some(key) = config_entry.node.key.as_mut() {
             if let ast::Expr::Identifier(identifier) = &mut key.node {
+                // desuger config expr, e.g., desuger
+                // ```
+                // foo = Foo {
+                //     bar.baz : xxx
+                // }
+                // ```
+                // to:
+                // ```
+                // foo = Foo {
+                //     bar : Bar {
+                //         baz : xxx
+                //     }
+                // }
+                // ```
                 if identifier.names.len() > 1 {
                     let mut names = identifier.names.clone();
                     let names = &mut names[1..];
                     names.reverse();
                     identifier.names = vec![identifier.names[0].clone()];
+                    key.filename = identifier.names[0].filename.clone();
+                    key.line = identifier.names[0].line;
+                    key.column = identifier.names[0].column;
+                    key.end_line = identifier.names[0].end_line;
+                    key.end_column = identifier.names[0].end_column;
 
                     let mut value = config_entry.node.value.clone();
                     for (i, name) in names.iter().enumerate() {
@@ -29,11 +48,11 @@ impl ConfigNestAttrTransformer {
                         let entry_value = ast::ConfigEntry {
                             key: Some(Box::new(ast::Node::new(
                                 ast::Expr::Identifier(name_node),
-                                key.filename.clone(),
-                                key.line,
-                                key.column,
-                                key.end_line,
-                                key.end_column,
+                                name.filename.clone(),
+                                name.line,
+                                name.column,
+                                name.end_line,
+                                name.end_column,
                             ))),
                             value: value.clone(),
                             operation: if is_last_item {
@@ -47,8 +66,8 @@ impl ConfigNestAttrTransformer {
                             items: vec![Box::new(ast::Node::new(
                                 entry_value,
                                 config_entry.filename.clone(),
-                                config_entry.line,
-                                config_entry.column,
+                                name.line,
+                                name.column,
                                 config_entry.end_line,
                                 config_entry.end_column,
                             ))],
@@ -56,8 +75,8 @@ impl ConfigNestAttrTransformer {
                         value = Box::new(ast::Node::new(
                             ast::Expr::Config(config_expr),
                             value.filename.clone(),
-                            value.line,
-                            value.column,
+                            name.line,
+                            name.column,
                             value.end_line,
                             value.end_column,
                         ))
diff --git a/kclvm/tools/src/LSP/src/goto_def.rs b/kclvm/tools/src/LSP/src/goto_def.rs
index c5a243db4..a7468f974 100644
--- a/kclvm/tools/src/LSP/src/goto_def.rs
+++ b/kclvm/tools/src/LSP/src/goto_def.rs
@@ -1031,4 +1031,20 @@ mod tests {
         let res = goto_definition(&program, &pos, &prog_scope);
         compare_goto_res(res, (&file, 18, 4, 18, 8));
     }
+
+    #[test]
+    #[bench_test]
+    fn config_desuger_def_goto_def() {
+        let (file, program, prog_scope, _) =
+            compile_test_file("src/test_data/goto_def_test/goto_def.k");
+
+        let pos = KCLPos {
+            filename: file.clone(),
+            line: 82,
+            column: Some(9),
+        };
+
+        let res = goto_definition(&program, &pos, &prog_scope);
+        compare_goto_res(res, (&file, 81, 6, 81, 10));
+    }
 }
diff --git a/kclvm/tools/src/LSP/src/test_data/goto_def_test/goto_def.k b/kclvm/tools/src/LSP/src/test_data/goto_def_test/goto_def.k
index 473cd80ab..5614a9894 100644
--- a/kclvm/tools/src/LSP/src/test_data/goto_def_test/goto_def.k
+++ b/kclvm/tools/src/LSP/src/test_data/goto_def_test/goto_def.k
@@ -77,3 +77,7 @@ items1 = [item | {
             "securityContext": {"capabilities": {"add" += [cc] if cc not in (container?.securityContext?.capabilities?.drop or []) else [] for cc in capabilities}}
         } for container in item.spec.containers]
 } for item in option("items")]
+
+p4 = Person {
+    n.name: "a"
+}