diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index c549d178..6b682bae 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -43,3 +43,8 @@ repos:
         language: system
         files: "\\.bash$"
         types: [file]
+      - id: clean-files-txt
+        name: Check that clean_files.txt is sorted alphabetically.
+        entry: ./hooks/check-clean-files-txt.sh
+        language: system
+        files: clean_files.txt
diff --git a/clean_files.txt b/clean_files.txt
index a645ab12..a578732b 100644
--- a/clean_files.txt
+++ b/clean_files.txt
@@ -1,7 +1,7 @@
 #######################################################################
 # Allow-list of files to be lint-checked by CI
 #
-# Directory Suport
+# Directory Support
 #   Directory references are allowed within the file, ie:
 #
 #       themes/powerline
@@ -16,15 +16,78 @@
 
 # root directories
 #
-docs
-hooks
+docs/
+hooks/
 
 # root files
 #
 .gitattributes
-lint_clean_files.sh
-install.sh
 bash_it.sh
+clean_files.txt
+install.sh
+lint_clean_files.sh
+
+# aliases
+#
+aliases/available/dnf.aliases.bash
+aliases/available/git.aliases.bash
+aliases/available/vim.aliases.bash
+
+# completions
+#
+completion/available/apm.completion.bash
+completion/available/awless.completion.bash
+completion/available/brew.completion.bash
+completion/available/cargo.completion.bash
+completion/available/composer.completion.bash
+completion/available/conda.completion.bash
+completion/available/consul.completion.bash
+completion/available/django.completion.bash
+completion/available/dmidecode.completion.bash
+completion/available/docker-machine.completion.bash
+completion/available/docker.completion.bash
+completion/available/gcloud.completion.bash
+completion/available/gem.completion.bash
+completion/available/github-cli.completion.bash
+completion/available/go.completion.bash
+completion/available/helm.completion.bash
+completion/available/jungle.completion.bash
+completion/available/knife.completion.bash
+completion/available/kontena.completion.bash
+completion/available/kubectl.completion.bash
+completion/available/lerna.completion.bash
+completion/available/minikube.completion.bash
+completion/available/ngrok.completion.bash
+completion/available/notify-send.completion.bash
+completion/available/npm.completion.bash
+completion/available/packer.completion.bash
+completion/available/pip.completion.bash
+completion/available/pip3.completion.bash
+completion/available/pipenv.completion.bash
+completion/available/pipx.completion.bash
+completion/available/rustup.completion.bash
+completion/available/sdkman.completion.bash
+completion/available/vault.completion.bash
+completion/available/vuejs.completion.bash
+
+# plugins
+#
+plugins/available/alias-completion.plugin.bash
+plugins/available/basher.plugin.bash
+plugins/available/cmd-returned-notify.plugin.bash
+plugins/available/docker-machine.plugin.bash
+plugins/available/git.plugin.bash
+plugins/available/go.plugin.bash
+plugins/available/goenv.plugin.bash
+plugins/available/history-search.plugin.bash
+plugins/available/history-substring-search.plugin.bash
+plugins/available/history.plugin.bash
+plugins/available/xterm.plugin.bash
+
+# tests
+#
+test/plugins/alias-completion.plugin.bats
+test/test_helper.bash
 
 # themes
 #
@@ -48,67 +111,7 @@ themes/modern
 themes/powerline
 themes/purity
 
-# plugins
-#
-plugins/available/alias-completion.plugin.bash
-plugins/available/basher.plugin.bash
-plugins/available/cmd-returned-notify.plugin.bash
-plugins/available/docker-machine.plugin.bash
-plugins/available/git.plugin.bash
-plugins/available/go.plugin.bash
-plugins/available/goenv.plugin.bash
-plugins/available/history-search.plugin.bash
-plugins/available/history-substring-search.plugin.bash
-plugins/available/history.plugin.bash
-plugins/available/xterm.plugin.bash
-
-# completions
-#
-completion/available/apm.completion.bash
-completion/available/awless.completion.bash
-completion/available/brew.completion.bash
-completion/available/cargo.completion.bash
-completion/available/composer.completion.bash
-completion/available/conda.completion.bash
-completion/available/consul.completion.bash
-completion/available/django.completion.bash
-completion/available/dmidecode.completion.bash
-completion/available/docker.completion.bash
-completion/available/docker-machine.completion.bash
-completion/available/gcloud.completion.bash
-completion/available/gem.completion.bash
-completion/available/go.completion.bash
-completion/available/github-cli.completion.bash
-completion/available/helm.completion.bash
-completion/available/jungle.completion.bash
-completion/available/knife.completion.bash
-completion/available/kontena.completion.bash
-completion/available/kubectl.completion.bash
-completion/available/lerna.completion.bash
-completion/available/minikube.completion.bash
-completion/available/notify-send.completion.bash
-completion/available/ngrok.completion.bash
-completion/available/npm.completion.bash
-completion/available/packer.completion.bash
-completion/available/pip.completion.bash
-completion/available/pip3.completion.bash
-completion/available/pipenv.completion.bash
-completion/available/pipx.completion.bash
-completion/available/rustup.completion.bash
-completion/available/vault.completion.bash
-completion/available/sdkman.completion.bash
-completion/available/vuejs.completion.bash
-
-# aliases
-#
-aliases/available/dnf.aliases.bash
-aliases/available/vim.aliases.bash
-aliases/available/git.aliases.bash
-
-# tests
-test/plugins/alias-completion.plugin.bats
-test/test_helper.bash
-
 # vendor init files
+#
 vendor/.gitattributes
 vendor/init.d
diff --git a/hooks/check-clean-files-txt.sh b/hooks/check-clean-files-txt.sh
new file mode 100755
index 00000000..a37ee777
--- /dev/null
+++ b/hooks/check-clean-files-txt.sh
@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+
+file=$1
+# Should only be run on clean_files.txt
+if [ "$file" != "clean_files.txt" ]; then
+	echo "Please run this script on clean_files.txt only!"
+	exit 1
+fi
+
+function compare_lines() {
+	prev=""
+	while read -r line; do
+		# Skip unimportant lines
+		[[ $line =~ "#" ]] && continue
+		[[ $line == "" ]] && continue
+		# Actual check
+		if [[ $prev > $line ]]; then
+			echo "$line should be before $prev"
+			exit 1
+		fi
+		prev=$line
+	done <<< "$1"
+}
+
+# We compare using the legacy way
+shopt -s compat31
+
+# Test root files
+compare_lines "$(grep -v "/" "$file")"
+
+# Test root directory
+compare_lines "$(grep "/$" "$file")"
+
+# Test non root directories
+compare_lines "$(grep "/." "$file")"
+
+shopt -u compat31
+# Yay, all good!
+exit 0