diff --git a/nixos/components/media/sanitize_folder.sh b/nixos/components/media/sanitize_folder.sh
index 0e75166..2bc2d35 100644
--- a/nixos/components/media/sanitize_folder.sh
+++ b/nixos/components/media/sanitize_folder.sh
@@ -1,20 +1,19 @@
-#! /bin/bash
+#!/bin/bash
 
 # todo : add a dry-run
 
 sanitize() {
-  shopt -s extglob;
+  shopt -s extglob
 
   filename=$(basename "$1")
   directory=$(dirname "$1")
 
   filename_clean="${filename//+([^[:alnum:]_-\\.])/_}"
 
-  if (test "$filename" != "$filename_clean")
-  then
+  if [[ $filename != "$filename_clean" ]]; then
     mv -v --backup=numbered "$1" "$directory/$filename_clean"
   fi
 }
 
 export -f sanitize
-find $1 -depth -exec bash -c 'sanitize "$0"' {} \;
+find "$1" -depth -exec bash -c 'sanitize "$0"' {} \;