diff --git a/subjects/devops/strange-files/README.md b/subjects/devops/strange-files/README.md
index 5f43af9bf..4c1e376b1 100644
--- a/subjects/devops/strange-files/README.md
+++ b/subjects/devops/strange-files/README.md
@@ -14,7 +14,7 @@ Create the following files:
 $ ls | cat -e
 "\?$*'Hard_file'*$?\"$
 firstFile$
-"medium_file!"$
+"medium_File!"$
 $
 ```