diff --git a/html/changelog.html b/html/changelog.html
index cdf6cba22c8..2be1707062c 100644
--- a/html/changelog.html
+++ b/html/changelog.html
@@ -35,6 +35,12 @@
 		-->
 		<div class="commit sansserif">
 
+			<h2 class="date">28 December 2020</h2>
+			<h3 class="author">MoondancerPony updated:</h3>
+			<ul class="changes bgimages16">
+				<li class="refactor">Chemmaster UI icons are now sent via spritesheets.</li>
+			</ul>
+
 			<h2 class="date">27 December 2020</h2>
 			<h3 class="author">Alberyk, Kyres1 updated:</h3>
 			<ul class="changes bgimages16">
diff --git a/html/changelogs/.all_changelog.yml b/html/changelogs/.all_changelog.yml
index 54a82beef2d..c23dd728a0b 100644
--- a/html/changelogs/.all_changelog.yml
+++ b/html/changelogs/.all_changelog.yml
@@ -17704,3 +17704,6 @@ DO NOT EDIT THIS FILE BY HAND!  AUTOMATICALLY GENERATED BY ss13_genchangelog.py.
   - rscadd: Added some items related to the end of the King of World Arc and the creation
       of the SCC; zeng-hu body analyzer, hephaestus exosuit dock, and idris service
       backpack.
+2020-12-28:
+  MoondancerPony:
+  - refactor: Chemmaster UI icons are now sent via spritesheets.
diff --git a/html/changelogs/MDP-chemsheet.yml b/html/changelogs/MDP-chemsheet.yml
deleted file mode 100644
index eec91d0371c..00000000000
--- a/html/changelogs/MDP-chemsheet.yml
+++ /dev/null
@@ -1,41 +0,0 @@
-################################
-# Example Changelog File
-#
-# Note: This file, and files beginning with ".", and files that don't end in ".yml" will not be read. If you change this file, you will look really dumb.
-#
-# Your changelog will be merged with a master changelog. (New stuff added only, and only on the date entry for the day it was merged.)
-# When it is, any changes listed below will disappear.
-#
-# Valid Prefixes:
-#   bugfix
-#   wip (For works in progress)
-#   tweak
-#   soundadd
-#   sounddel
-#   rscadd (general adding of nice things)
-#   rscdel (general deleting of nice things)
-#   imageadd
-#   imagedel
-#   maptweak
-#   spellcheck (typo fixes)
-#   experiment
-#   balance
-#   admin
-#   backend
-#   security
-#   refactor
-#################################
-
-# Your name.
-author: MoondancerPony
-
-# Optional: Remove this file after generating master changelog.  Useful for PR changelogs that won't get used again.
-delete-after: True
-
-# Any changes you've made.  See valid prefix list above.
-# INDENT WITH TWO SPACES.  NOT TABS.  SPACES.
-# SCREW THIS UP AND IT WON'T WORK.
-# Also, all entries are changed into a single [] after a master changelog generation. Just remove the brackets when you add new entries.
-# Please surround your changes in  double quotes ("), as certain characters otherwise screws up compiling. The quotes will not show up in the changelog.
-changes:
-  - refactor: "Chemmaster UI icons are now sent via spritesheets."