diff --git a/src/flappyBird/generateAssets.py b/src/flappyBird/generateAssets.py
old mode 100644
new mode 100755
index 60c22bf..656aba7
--- a/src/flappyBird/generateAssets.py
+++ b/src/flappyBird/generateAssets.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 import argparse
 from pathlib import Path
 from PIL import Image
@@ -14,7 +15,7 @@ input = Path(args.input)
 output = Path(args.output)
 
 if not input.exists():
-	print("Input " + str(path.absolute()) + " not found.")
+	print("Input " + str(input.absolute()) + " not found.")
 	raise SystemExit(1)
 
 hexList = list()
diff --git a/src/flappyBird/meson.build b/src/flappyBird/meson.build
index 7f71c8e..f74b96d 100644
--- a/src/flappyBird/meson.build
+++ b/src/flappyBird/meson.build
@@ -5,8 +5,9 @@ flappy_sources = [
 	'MainMenu.cc'
 ]
 
-python3 = find_program('python3')
-bird = custom_target('bird', output: 'birdSprite.cc', input: ['generateAssets.py', 'assets/yellowbird-downflap.png'], command: [python3, '@INPUT0@', 'bird', '@INPUT1@', '@OUTPUT@'])
+assets = find_program('generateAssets.py')
+asset_gen = generator(assets, output: '@BASENAME@.cc', arguments: ['@EXTRA_ARGS@', '@INPUT@', '@OUTPUT@'])
+bird = asset_gen.process('assets/yellowbird-downflap.png', extra_args: ['bird'])
 
 flappy_bird = static_library('flappyBird', [flappy_sources, bird], dependencies: deps, include_directories: incdirs)
 flappy_dep = declare_dependency(link_with: [flappy_bird], include_directories: incdirs)