diff --git a/src/twomartens/masterthesis/ssd.py b/src/twomartens/masterthesis/ssd.py
index f977789..24e60e6 100644
--- a/src/twomartens/masterthesis/ssd.py
+++ b/src/twomartens/masterthesis/ssd.py
@@ -40,7 +40,6 @@ import time
 from typing import Dict
 from typing import Optional
 
-import math
 import numpy as np
 import tensorflow as tf
 from tensorflow.python.ops import summary_ops_v2