diff --git a/main.py b/main.py
index d6e1f55..4e48804 100644
--- a/main.py
+++ b/main.py
@@ -15,11 +15,18 @@ def main():
     print(datetime.now(tz))
     # print("hola")
 
-    content = download_file_proto()
-    if content == None:
+    fileproto = download_file_proto()
+    if fileproto == None:
         return False
+
+    namefile = r.get('fileproto')
+    if namefile == fileproto['name']:
+        print(namefile)
+        return
     
-    data = read_file_proto_x_stop(content)
+    r.set('fileproto', fileproto['name'])
+    print(fileproto['name'])
+    data = read_file_proto_x_stop(fileproto['content'])
 
     # save data to redis db
     for key in data:
@@ -31,7 +38,9 @@ def main():
 def download_file_proto():
     response = requests.get('https://app.ilab.cl/gtfs-rt/api/concepcion')
     if response.status_code == 200:
-        return response.content
+        content_disposition = response.headers['Content-Disposition']
+        nombre_archivo = content_disposition.split('filename=')[1]
+        return { 'name': nombre_archivo, 'content': response.content }
     return None