diff --git a/app.py b/app.py
index 8533bb5..17252f4 100644
--- a/app.py
+++ b/app.py
@@ -136,7 +136,7 @@ def get_top_scores():
 
             response = jsonify(top_scores)
             response.headers.add("Access-Control-Allow-Origin", "*")
-            scores.headers.add("Cache-Control", "public, max-age=300")
+            response.headers.add("Cache-Control", "public, max-age=300")
             return response
     except Exception as e:
         return jsonify({"error": str(e)}), 500