diff --git a/src/pupil_labs/neon_recording/stream/stream.py b/src/pupil_labs/neon_recording/stream/stream.py
index 4aa6a93..1e1527f 100644
--- a/src/pupil_labs/neon_recording/stream/stream.py
+++ b/src/pupil_labs/neon_recording/stream/stream.py
@@ -1,5 +1,3 @@
-import abc
-import math
 from enum import Enum
 
 import numpy as np