diff --git a/testing/muxer_tests.cc b/testing/muxer_tests.cc
index 8d2fd30..53d3b4b 100644
--- a/testing/muxer_tests.cc
+++ b/testing/muxer_tests.cc
@@ -281,7 +281,7 @@ TEST_F(MuxerTest, BlockWithAdditional) {
   // Valid Frame
   EXPECT_TRUE(segment_.AddFrameWithAdditional(dummy_data_, kFrameLength,
                                               dummy_data_, kFrameLength, 1,
-                                              kVideoTrackNumber, 0, false));
+                                              kVideoTrackNumber, 0, true));
 
   // Valid Frame
   EXPECT_TRUE(segment_.AddFrameWithAdditional(
@@ -323,7 +323,7 @@ TEST_F(MuxerTest, BlockAdditionalWithAddGenericFrame) {
   frame.Init(dummy_data_, kFrameLength);
   frame.AddAdditionalData(dummy_data_, kFrameLength, 1);
   frame.set_track_number(kVideoTrackNumber);
-  frame.set_is_key(false);
+  frame.set_is_key(true);
 
   // Valid Frame
   frame.set_timestamp(0);
@@ -331,6 +331,7 @@ TEST_F(MuxerTest, BlockAdditionalWithAddGenericFrame) {
 
   // Valid Frame
   frame.set_timestamp(2000000);
+  frame.set_is_key(false);
   EXPECT_TRUE(segment_.AddGenericFrame(&frame));
 
   // Invalid Frame - Non monotonically increasing timestamp
diff --git a/testing/testdata/block_with_additional.webm b/testing/testdata/block_with_additional.webm
index 4878926..db67ab4 100644
Binary files a/testing/testdata/block_with_additional.webm and b/testing/testdata/block_with_additional.webm differ
diff --git a/testing/testdata/discard_padding.webm b/testing/testdata/discard_padding.webm
index 2a928ec..3d15c6d 100644
Binary files a/testing/testdata/discard_padding.webm and b/testing/testdata/discard_padding.webm differ
diff --git a/testing/testdata/metadata_block.webm b/testing/testdata/metadata_block.webm
index 369ab3f..35cc02c 100644
Binary files a/testing/testdata/metadata_block.webm and b/testing/testdata/metadata_block.webm differ
diff --git a/testing/testdata/segment_duration.webm b/testing/testdata/segment_duration.webm
index b7dccb1..eea3ec7 100644
Binary files a/testing/testdata/segment_duration.webm and b/testing/testdata/segment_duration.webm differ