diff --git a/util/scripts/pkg-gba.py b/util/scripts/pkg-gba.py
index 10f069b6..98dfc995 100755
--- a/util/scripts/pkg-gba.py
+++ b/util/scripts/pkg-gba.py
@@ -17,6 +17,10 @@ os = platform.system().lower()
 arch = platform.machine()
 host_env = f'{os}-{arch}'
 
+def run(args: list[str]):
+    if subprocess.run(args).returncode != 0:
+        sys.exit(1)
+
 # get current build type
 with open(".current_build", "r") as f:
     current_build = f.readlines()[0]
@@ -31,9 +35,9 @@ project_gba = f'{project_name}.gba'
 project_manifest = f'{project_name.lower()}-manifest.json'
 
 shutil.copyfile(project_bin, project_gba)
-subprocess.run([
+run([
     f'{bin}/{project_name.lower()}-pack',
         '-src', project_dir,
         '-rom-bin', project_gba,
         '-manifest', project_manifest])
-subprocess.run(['gbafix', project_gba])
+run(['gbafix', project_gba])