diff --git a/10.brainstorming-innovative-courses/entropy/n1/20.classical-chocks/10.main/textbook.es.md b/10.brainstorming-innovative-courses/entropy/n1/20.classical-chocks/10.main/textbook.es.md
index 0e0dfdbf1..81e8a6443 100644
--- a/10.brainstorming-innovative-courses/entropy/n1/20.classical-chocks/10.main/textbook.es.md
+++ b/10.brainstorming-innovative-courses/entropy/n1/20.classical-chocks/10.main/textbook.es.md
@@ -5,4 +5,4 @@ routable: true
 viible: true
 ---
 
-Chocs : main ES
\ No newline at end of file
+##### Choques : parte principal, ES, nivel 1
\ No newline at end of file