diff --git a/tests/test_audio_stream.py b/tests/test_audio_stream.py
index 621784a1..3759075c 100644
--- a/tests/test_audio_stream.py
+++ b/tests/test_audio_stream.py
@@ -14,7 +14,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import platform
 import time
 
 import numpy as np