diff --git a/10.brainstorming-innovative-courses/entropy/n1/10.enumeration/10.main/textbook.en.md b/10.brainstorming-innovative-courses/entropy/n1/10.enumeration/10.main/textbook.en.md
index 4d1dc72ce..470dc70bc 100644
--- a/10.brainstorming-innovative-courses/entropy/n1/10.enumeration/10.main/textbook.en.md
+++ b/10.brainstorming-innovative-courses/entropy/n1/10.enumeration/10.main/textbook.en.md
@@ -2,7 +2,7 @@
 title: enumeration
 published: true
 routable: true
-viible: true
----
+visible: true
+
 
 Enumeration : main EN
\ No newline at end of file