diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6ee72434..5f52a6fd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@
 * Introduce guidelines for rendering CSV data as tables
 * Introduce guidelines for pulling in docstrings using Sphinx `autodoc` extension
 * Introduce guidelines for using custom base templates
+* Dropped unused makefile variable `ALLFILES`
 
 ### Added
 
diff --git a/docs/Makefile b/docs/Makefile
index c45b9f57..3f9b85e3 100644
--- a/docs/Makefile
+++ b/docs/Makefile
@@ -13,7 +13,6 @@ VENVDIR         = $(SPHINXDIR)/venv
 PA11Y           = $(SPHINXDIR)/node_modules/pa11y/bin/pa11y.js --config $(SPHINXDIR)/pa11y.json
 VENV            = $(VENVDIR)/bin/activate
 TARGET          = *
-ALLFILES        =  *.rst **/*.rst
 METRICSDIR      = $(SOURCEDIR)/.sphinx/metrics
 REQPDFPACKS     = latexmk fonts-freefont-otf texlive-latex-recommended texlive-latex-extra texlive-fonts-recommended texlive-font-utils texlive-lang-cjk texlive-xetex plantuml xindy tex-gyre dvipng
 CONFIRM_SUDO    ?= N