diff --git a/src/thumbor_video_engine/engines/video.py b/src/thumbor_video_engine/engines/video.py
index 113c874..8fb51a5 100644
--- a/src/thumbor_video_engine/engines/video.py
+++ b/src/thumbor_video_engine/engines/video.py
@@ -125,7 +125,7 @@ def __getattribute__(self, attr):
         # or video_engine class, when appropriate, for self.__class__
         if attr == "__class__" and self.__dict__.get("engine"):
             return self.__dict__["engine"].__class__
-        return super().__getattribute__(attr)
+        return object.__getattribute__(self, attr)
 
     def __getattr__(self, attr):
         if not self.__dict__.get('engine'):
diff --git a/tests/engines/test_video_engine.py b/tests/engines/test_video_engine.py
index 5b91da7..2cc961d 100644
--- a/tests/engines/test_video_engine.py
+++ b/tests/engines/test_video_engine.py
@@ -15,7 +15,7 @@
 
 def assert_colors_similar(rgb1, rgb2, message):
     delta_e = color_diff(rgb1, rgb2)
-    assert delta_e < 0.05, f"{message}: {repr_rgb(rgb1)} != {repr_rgb(rgb2)}"
+    assert delta_e < 0.05, "%s: %s != %s" % (message, repr_rgb(rgb1), repr_rgb(rgb2))
 
 
 @pytest.fixture
diff --git a/tests/result_storages/test_file_storage.py b/tests/result_storages/test_file_storage.py
index aab1992..82177e3 100644
--- a/tests/result_storages/test_file_storage.py
+++ b/tests/result_storages/test_file_storage.py
@@ -3,7 +3,7 @@
 
 import pytest
 
-from thumbor_video_engine.engines.video import Engine as VideoEngine
+from thumbor_video_engine.engines.ffmpeg import Engine as FFMpegEngine
 
 
 @pytest.fixture
@@ -55,12 +55,12 @@ def test_file_result_storage_retrieve(config, mocker, http_client, base_url, tmp
         src_file,
         "%s/%s/ba/68/88258f0b20357d15380b611a7b31da32f19b" % (tmp_path, subdir))
 
-    mocker.spy(VideoEngine, "load")
+    mocker.spy(FFMpegEngine, "load")
 
     response = yield http_client.fetch("%s/unsafe/hotdog.gif" % base_url,
         headers={'Accept': mime_type})
     assert response.code == 200
-    assert VideoEngine.load.call_count == 0
+    assert FFMpegEngine.load.call_count == 0
     assert response.headers.get('content-type') == mime_type
     if auto_gif:
         assert response.headers.get('vary') == 'Accept'
@@ -71,7 +71,7 @@ def test_file_result_storage_retrieve(config, mocker, http_client, base_url, tmp
         "%s/unsafe/pbj-time.gif" % base_url,
         headers={'Accept': mime_type})
     assert response.code == 200
-    assert VideoEngine.load.call_count == 1
+    assert FFMpegEngine.load.call_count == 1
 
 
 @pytest.mark.gen_test
@@ -92,15 +92,15 @@ def test_file_result_storage_legacy_retrieve(
         src_file,
         "%s/v2%s/un/sa/unsafe/hotdog.gif" % (tmp_path, subdir))
 
-    mocker.spy(VideoEngine, "load")
+    mocker.spy(FFMpegEngine, "load")
 
     response = yield http_client.fetch("%s/unsafe/hotdog.gif" % base_url,
         headers={'Accept': accept})
     assert response.code == 200
-    assert VideoEngine.load.call_count == 0
+    assert FFMpegEngine.load.call_count == 0
 
     response = yield http_client.fetch(
         "%s/unsafe/pbj-time.gif" % base_url,
         headers={'Accept': accept})
     assert response.code == 200
-    assert VideoEngine.load.call_count == 1
+    assert FFMpegEngine.load.call_count == 1
diff --git a/tests/result_storages/test_s3_storage.py b/tests/result_storages/test_s3_storage.py
index a010092..981cb3e 100644
--- a/tests/result_storages/test_s3_storage.py
+++ b/tests/result_storages/test_s3_storage.py
@@ -14,7 +14,7 @@
     asyncio = None
 
 from thumbor.engines import BaseEngine
-from thumbor_video_engine.engines.video import Engine as VideoEngine
+from thumbor_video_engine.engines.ffmpeg import Engine as FFMpegEngine
 
 
 # Subclassed Popen that gets around mirakuru not capturing stderr
@@ -106,7 +106,7 @@ def test_s3_result_storage_load(mocker, config, http_client, base_url, auto_gif,
     if mime_type == 'image/gif':
         config.FFMPEG_GIF_AUTO_H264 = False
 
-    mocker.spy(VideoEngine, "load")
+    mocker.spy(FFMpegEngine, "load")
 
     if not auto_gif and mime_type != 'image/png':
         bucket_key = 'unsafe/hotdog.gif'
@@ -134,7 +134,7 @@ def test_s3_result_storage_load(mocker, config, http_client, base_url, auto_gif,
         assert response.headers.get("vary") == "Accept"
     else:
         assert response.headers.get("vary") is None
-    assert VideoEngine.load.call_count == 0
+    assert FFMpegEngine.load.call_count == 0
 
 
 @pytest.mark.skipif(Bucket is None, reason="tc_aws unavailable")
diff --git a/tests/utils.py b/tests/utils.py
index 7dcb23b..4c1fbdf 100644
--- a/tests/utils.py
+++ b/tests/utils.py
@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 import math