diff --git a/tools/build_patch.gd b/tools/build_patch.gd
index 8d5de6a..207a04e 100644
--- a/tools/build_patch.gd
+++ b/tools/build_patch.gd
@@ -9,14 +9,14 @@ func _initialize():
 	
 	if not FileAccess.file_exists(changed_files_txt):
 		print("ERROR: missing changed_files.txt. Cannot build patch.")
-		quit(1)
+		OS.set_exit_code(1)
 		return
 
 	var pck_packer = PCKPacker.new()
 	var err = pck_packer.pck_start(output_file)
 	if err != OK:
 		print("ERROR: Could not start PCK file: ", output_file)
-		quit(1)
+		OS.set_exit_code(1)
 		return
 
 	var file = FileAccess.open(changed_files_txt, FileAccess.READ)