diff --git a/tests/test_codec_context.py b/tests/test_codec_context.py
index 2f9a34aa7..1a2b189cc 100644
--- a/tests/test_codec_context.py
+++ b/tests/test_codec_context.py
@@ -269,7 +269,7 @@ def image_sequence_encode(self, codec_name):
                 self.assertEqual(frame.format.name, pix_fmt)
 
     def test_encoding_h264(self):
-        self.video_encoding("libx264", {"crf": "19"})
+        self.video_encoding("h264", {"crf": "19"})
 
     def test_encoding_mpeg4(self):
         self.video_encoding("mpeg4")
diff --git a/tests/test_encode.py b/tests/test_encode.py
index 3ca031794..d0939470a 100644
--- a/tests/test_encode.py
+++ b/tests/test_encode.py
@@ -151,7 +151,7 @@ def test_encoding_with_pts(self):
         path = self.sandboxed("video_with_pts.mov")
 
         with av.open(path, "w") as output:
-            stream = output.add_stream("libx264", 24)
+            stream = output.add_stream("h264", 24)
             self.assertIn(stream, output.streams.video)
             stream.width = WIDTH
             stream.height = HEIGHT