diff --git a/dom/media/VideoUtils.cpp b/dom/media/VideoUtils.cpp
index 088015bc064d..9ad4c0c35677 100644
--- a/dom/media/VideoUtils.cpp
+++ b/dom/media/VideoUtils.cpp
@@ -475,7 +475,8 @@ IsAACCodecString(const nsAString& aCodec)
   return
     aCodec.EqualsLiteral("mp4a.40.2") || // MPEG4 AAC-LC
     aCodec.EqualsLiteral("mp4a.40.5") || // MPEG4 HE-AAC
-    aCodec.EqualsLiteral("mp4a.67"); // MPEG2 AAC-LC}
+    aCodec.EqualsLiteral("mp4a.67")   || // MPEG2 AAC-LC
+    aCodec.EqualsLiteral("mp4a.40.29");  // MPEG4 HE-AACv2
 }
 
 bool
diff --git a/dom/media/test/test_can_play_type_mpeg.html b/dom/media/test/test_can_play_type_mpeg.html
index c73ad078f532..99685b4461fc 100644
--- a/dom/media/test/test_can_play_type_mpeg.html
+++ b/dom/media/test/test_can_play_type_mpeg.html
@@ -76,7 +76,8 @@ function check_mp4(v, enabled) {
   check("audio/mp4; codecs=mp4a.40.5", "probably");
   check("audio/x-m4a; codecs=\"mp4a.40.5\"", "probably");
   check("audio/x-m4a; codecs=mp4a.40.5", "probably");
-
+  // HE-AAC v2
+  check("audio/mp4; codecs=\"mp4a.40.29\"", "probably");
 }
 
 function check_mp3(v, enabled) {