diff --git a/README.md b/README.md
index e9dec7b2e28..19c515e6f5f 100644
--- a/README.md
+++ b/README.md
@@ -254,6 +254,7 @@ Check out the **[contributing wiki](https://github.com/pion/webrtc/wiki/Contribu
 * [Bo Shi](https://github.com/bshimc)
 * [Suzuki Takeo](https://github.com/BambooTuna)
 * [baiyufei](https://github.com/baiyufei)
+* [pascal-ace](https://github.com/pascal-ace)
 
 ### License
 MIT License - see [LICENSE](LICENSE) for full text
diff --git a/mediaengine.go b/mediaengine.go
index 59d771c8be1..a43db508785 100644
--- a/mediaengine.go
+++ b/mediaengine.go
@@ -494,17 +494,17 @@ func (m *MediaEngine) getRTPParametersByPayloadType(payloadType PayloadType) (RT
 
 func payloaderForCodec(codec RTPCodecCapability) (rtp.Payloader, error) {
 	switch strings.ToLower(codec.MimeType) {
-	case MimeTypeH264:
+	case  strings.ToLower(MimeTypeH264):
 		return &codecs.H264Payloader{}, nil
-	case MimeTypeOpus:
+	case strings.ToLower(MimeTypeOpus):
 		return &codecs.OpusPayloader{}, nil
-	case MimeTypeVP8:
+	case strings.ToLower(MimeTypeVP8):
 		return &codecs.VP8Payloader{}, nil
-	case MimeTypeVP9:
+	case strings.ToLower(MimeTypeVP9):
 		return &codecs.VP9Payloader{}, nil
-	case MimeTypeG722:
+	case strings.ToLower(MimeTypeG722):
 		return &codecs.G722Payloader{}, nil
-	case MimeTypePCMU, MimeTypePCMA:
+	case strings.ToLower(MimeTypePCMU), strings.ToLower(MimeTypePCMA):
 		return &codecs.G711Payloader{}, nil
 	default:
 		return nil, ErrNoPayloaderForCodec