diff --git a/subjects/devops/days_and_numbers/README.md b/subjects/devops/custom_calendar/README.md
similarity index 99%
rename from subjects/devops/days_and_numbers/README.md
rename to subjects/devops/custom_calendar/README.md
index ade9f7d2..a8354257 100644
--- a/subjects/devops/days_and_numbers/README.md
+++ b/subjects/devops/custom_calendar/README.md
@@ -1,4 +1,4 @@
-## Days and numbers
+## Custom calendar
 
 ### Instructions