diff --git a/eval/generation/uni_mmmu/eval_ummmu.py b/eval/generation/uni_mmmu/eval_ummmu.py
index 088e5bd..54b6fda 100644
--- a/eval/generation/uni_mmmu/eval_ummmu.py
+++ b/eval/generation/uni_mmmu/eval_ummmu.py
@@ -2,6 +2,7 @@
 from __future__ import annotations
 import argparse
 import base64
+import colorsys
 import csv
 import glob
 import html