diff --git a/generate-24px-versions.sh b/generate-24px-versions.sh
index af92253f..630c0123 100644
--- a/generate-24px-versions.sh
+++ b/generate-24px-versions.sh
@@ -1,68 +1,68 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 set -e
 
 OUTPUT_DIR=$1
 
 # Compat between freebsd and gnu.
 case $(sed --help 2>&1) in
     *GNU*|*BusyBox*)
         echo "Using GNU-style sed arguments"
         sed_i () {
             sed -i "$@"
         }
         ;;
     *)
         echo "Using POSIX-style sed arguments"
         sed_i () {
             sed -i '' "$@"
         }
         ;;
 esac
 
 for INPUT_FILE in {devices,actions,places,status}/22/*.svg; do
     OUTPUT_FILE="$OUTPUT_DIR/${INPUT_FILE/22/24}"
     if [ ! -d "$(dirname "$OUTPUT_FILE")" ] ; then
         mkdir -p "$(dirname "$OUTPUT_FILE")"
     fi
 
     # It's a symlink to another icon; make a link to mirror the one for the 22px version
     if [ -L "$INPUT_FILE" ] ; then
         LINK_TARGET="$(readlink "$INPUT_FILE")"
         ln -fsn "$LINK_TARGET" "$OUTPUT_FILE"
 
     # It's a file; make a 24px version of it
     else
         cp "$INPUT_FILE" "$OUTPUT_FILE"
 
         # Change the size of the bounding box
         if grep --quiet '"0 0 22 22' "$OUTPUT_FILE"; then
             sed_i -e 's/"0 0 22 22/"0 0 24 24/g' "$OUTPUT_FILE"
         # YOU
         elif grep --quiet 'width="22"' "$OUTPUT_FILE"; then
             sed_i -e 's/width="22"/width="24"/g' "$OUTPUT_FILE"
             sed_i -e 's/height="22"/height="24"/g' "$OUTPUT_FILE"
         else
             echo "$INPUT_FILE does not have the size defined in a parse-able way"
             exit 1
         fi
 
         # Group all the paths and transform them to fit in the center of a 24px box
         if grep --quiet "</defs>" "$OUTPUT_FILE"; then
             sed_i -e 's|</defs>|</defs><g transform="translate(1,1)">|g' "$OUTPUT_FILE"
         elif grep --quiet "</style>" "$OUTPUT_FILE"; then
             sed_i -e 's|</style>|</style><g transform="translate(1,1)">|g' "$OUTPUT_FILE"
         else
         # No stylesheet or defs tag; put the group at the end of the opening svg tag
             sed_i -e 's|<svg \(.*\)>|<svg \1><g transform="translate(1,1)">|g' "$OUTPUT_FILE"
         fi
 
         # Add the closing group tag
         sed_i -e 's|</svg>|</g></svg>|g' "$OUTPUT_FILE"
     fi
 done
 
 # Make the @2x hidpi compatibility dirs
 for ICON_DIR in  devices actions places status; do
     ln -fsn 24 "$OUTPUT_DIR/$ICON_DIR/24@2x"
 done