diff --git a/crates/mako/src/ast/file.rs b/crates/mako/src/ast/file.rs
index 981a39826..75dfc300b 100644
--- a/crates/mako/src/ast/file.rs
+++ b/crates/mako/src/ast/file.rs
@@ -416,10 +416,10 @@ mod tests {
 
     #[test]
     fn test_has_hash_without_dot() {
-        assert_eq!(has_hash_without_dot("foo.ts#world"), true);
-        assert_eq!(has_hash_without_dot("foo#bar.ts"), false);
-        assert_eq!(has_hash_without_dot("#no_dot"), true);
-        assert_eq!(has_hash_without_dot("no_hash"), false);
-        assert_eq!(has_hash_without_dot("#.dot_after_hash"), false);
+        assert!(has_hash_without_dot("foo.ts#world"));
+        assert!(!has_hash_without_dot("foo#bar.ts"));
+        assert!(has_hash_without_dot("#no_dot"));
+        assert!(!has_hash_without_dot("no_hash"));
+        assert!(!has_hash_without_dot("#.dot_after_hash"));
     }
 }
diff --git a/crates/mako/src/visitors/env_replacer.rs b/crates/mako/src/visitors/env_replacer.rs
index c32134fd0..37f691c32 100644
--- a/crates/mako/src/visitors/env_replacer.rs
+++ b/crates/mako/src/visitors/env_replacer.rs
@@ -94,10 +94,14 @@ impl VisitMut for EnvReplacer {
                     current_member_obj = obj.as_mut();
                 }
 
-                if let Expr::Ident(Ident { sym, .. }) = current_member_obj {
+                if let Expr::Ident(Ident { sym, span, .. }) = current_member_obj {
+                    if span.ctxt.outer() != self.unresolved_mark {
+                        return;
+                    }
                     member_visit_path.push('.');
                     member_visit_path.push_str(sym.as_ref());
                 }
+
                 let member_visit_path = member_visit_path
                     .split('.')
                     .rev()
@@ -403,7 +407,7 @@ mod tests {
     }
 
     #[test]
-    fn test_complited_computed_as_member_key() {
+    fn test_complicated_computed_as_member_key() {
         assert_eq!(
             run(
                 r#"log(A[v.v])"#,
@@ -441,6 +445,20 @@ mod tests {
         );
     }
 
+    #[test]
+    fn test_should_not_replace_existed_as_member_prop() {
+        assert_eq!(
+            run(
+                r#"let A = {};log(A.v, A[X.Y])"#,
+                hashmap! {
+                    "A".to_string() => json!(r#"{"v": 1}"#),
+                    "X.Y".to_string() => json!(r#""xy""#)
+                }
+            ),
+            r#"let A = {};log(A.v, A["xy"]);"#
+        );
+    }
+
     #[test]
     fn test_should_not_replace_not_defined() {
         assert_eq!(