diff --git a/CHANGELOG.md b/CHANGELOG.md
index b5921b0..073a12a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,7 +15,7 @@
 
 ### Changed
 - setup.py build description to just "Pesterchum"
-- Made file capitalization consistent for a few files. (.PNG --> .png), because some file systems are queasy on that. (See https://superuser.com/questions/881804/case-sensitive-file-extensions-in-windows-and-linux) 
+- Made file capitalization consistent for a few files. (.PNG --> .png), because some file systems are queasy on that, and it wasn't working on Debian. (See https://superuser.com/questions/881804/case-sensitive-file-extensions-in-windows-and-linux) 
 
 ## [v2.1.1] - 2021-4-12