diff --git a/custom_defaults.yml b/custom_defaults.yml
index e5330cc..c5fd2f1 100644
--- a/custom_defaults.yml
+++ b/custom_defaults.yml
@@ -28,6 +28,7 @@ tex:
   # executable: "xelatex -no-pdf"
   # template_file: "ctex_template.tex"
   # intermediate_filetype: "xdv"
+universal_import_line: "from manim_imports_ext import *"
 style:
   background_color: "#000000"
 quality: