diff --git a/mediaengine.go b/mediaengine.go
index 1e7e03b3..170a7299 100644
--- a/mediaengine.go
+++ b/mediaengine.go
@@ -20,48 +20,6 @@ import (
 	"github.com/pion/webrtc/v4/internal/fmtp"
 )
 
-const (
-	// MimeTypeH264 H264 MIME type.
-	// Note: Matching should be case insensitive.
-	MimeTypeH264 = "video/H264"
-	// MimeTypeH265 H265 MIME type
-	// Note: Matching should be case insensitive.
-	MimeTypeH265 = "video/H265"
-	// MimeTypeOpus Opus MIME type
-	// Note: Matching should be case insensitive.
-	MimeTypeOpus = "audio/opus"
-	// MimeTypeVP8 VP8 MIME type
-	// Note: Matching should be case insensitive.
-	MimeTypeVP8 = "video/VP8"
-	// MimeTypeVP9 VP9 MIME type
-	// Note: Matching should be case insensitive.
-	MimeTypeVP9 = "video/VP9"
-	// MimeTypeAV1 AV1 MIME type
-	// Note: Matching should be case insensitive.
-	MimeTypeAV1 = "video/AV1"
-	// MimeTypeG722 G722 MIME type
-	// Note: Matching should be case insensitive.
-	MimeTypeG722 = "audio/G722"
-	// MimeTypePCMU PCMU MIME type
-	// Note: Matching should be case insensitive.
-	MimeTypePCMU = "audio/PCMU"
-	// MimeTypePCMA PCMA MIME type
-	// Note: Matching should be case insensitive.
-	MimeTypePCMA = "audio/PCMA"
-	// MimeTypeRTX RTX MIME type
-	// Note: Matching should be case insensitive.
-	MimeTypeRTX = "video/rtx"
-	// MimeTypeFlexFEC FEC MIME Type
-	// Note: Matching should be case insensitive.
-	MimeTypeFlexFEC = "video/flexfec"
-	// MimeTypeFlexFEC03 FlexFEC03 MIME Type
-	// Note: Matching should be case insensitive.
-	MimeTypeFlexFEC03 = "video/flexfec-03"
-	// MimeTypeUlpFEC UlpFEC MIME Type
-	// Note: Matching should be case insensitive.
-	MimeTypeUlpFEC = "video/ulpfec"
-)
-
 type mediaEngineHeaderExtension struct {
 	uri              string
 	isAudio, isVideo bool
diff --git a/mimetype.go b/mimetype.go
new file mode 100644
index 00000000..9575f9eb
--- /dev/null
+++ b/mimetype.go
@@ -0,0 +1,46 @@
+// SPDX-FileCopyrightText: 2025 The Pion community <https://pion.ly>
+// SPDX-License-Identifier: MIT
+
+package webrtc
+
+const (
+	// MimeTypeH264 H264 MIME type.
+	// Note: Matching should be case insensitive.
+	MimeTypeH264 = "video/H264"
+	// MimeTypeH265 H265 MIME type
+	// Note: Matching should be case insensitive.
+	MimeTypeH265 = "video/H265"
+	// MimeTypeOpus Opus MIME type
+	// Note: Matching should be case insensitive.
+	MimeTypeOpus = "audio/opus"
+	// MimeTypeVP8 VP8 MIME type
+	// Note: Matching should be case insensitive.
+	MimeTypeVP8 = "video/VP8"
+	// MimeTypeVP9 VP9 MIME type
+	// Note: Matching should be case insensitive.
+	MimeTypeVP9 = "video/VP9"
+	// MimeTypeAV1 AV1 MIME type
+	// Note: Matching should be case insensitive.
+	MimeTypeAV1 = "video/AV1"
+	// MimeTypeG722 G722 MIME type
+	// Note: Matching should be case insensitive.
+	MimeTypeG722 = "audio/G722"
+	// MimeTypePCMU PCMU MIME type
+	// Note: Matching should be case insensitive.
+	MimeTypePCMU = "audio/PCMU"
+	// MimeTypePCMA PCMA MIME type
+	// Note: Matching should be case insensitive.
+	MimeTypePCMA = "audio/PCMA"
+	// MimeTypeRTX RTX MIME type
+	// Note: Matching should be case insensitive.
+	MimeTypeRTX = "video/rtx"
+	// MimeTypeFlexFEC FEC MIME Type
+	// Note: Matching should be case insensitive.
+	MimeTypeFlexFEC = "video/flexfec"
+	// MimeTypeFlexFEC03 FlexFEC03 MIME Type
+	// Note: Matching should be case insensitive.
+	MimeTypeFlexFEC03 = "video/flexfec-03"
+	// MimeTypeUlpFEC UlpFEC MIME Type
+	// Note: Matching should be case insensitive.
+	MimeTypeUlpFEC = "video/ulpfec"
+)
diff --git a/rtpcodec.go b/rtpcodec.go
index 798d3093..d4733dbd 100644
--- a/rtpcodec.go
+++ b/rtpcodec.go
@@ -155,6 +155,17 @@ func findRTXPayloadType(needle PayloadType, haystack []RTPCodecParameters) Paylo
 	return PayloadType(0)
 }
 
+// For now, only FlexFEC is supported.
+func findFECPayloadType(haystack []RTPCodecParameters) PayloadType {
+	for _, c := range haystack {
+		if strings.Contains(c.RTPCodecCapability.MimeType, MimeTypeFlexFEC) {
+			return c.PayloadType
+		}
+	}
+
+	return PayloadType(0)
+}
+
 func rtcpFeedbackIntersection(a, b []RTCPFeedback) (out []RTCPFeedback) {
 	for _, aFeedback := range a {
 		for _, bFeeback := range b {
diff --git a/rtpcodec_test.go b/rtpcodec_test.go
new file mode 100644
index 00000000..0328f36f
--- /dev/null
+++ b/rtpcodec_test.go
@@ -0,0 +1,85 @@
+// SPDX-FileCopyrightText: 2025 The Pion community <https://pion.ly>
+// SPDX-License-Identifier: MIT
+
+package webrtc
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestFindFECPayloadType(t *testing.T) {
+	for _, test := range []struct {
+		Haystack          []RTPCodecParameters
+		ResultPayloadType PayloadType
+	}{
+		{
+			Haystack: []RTPCodecParameters{
+				{
+					PayloadType: 1,
+					RTPCodecCapability: RTPCodecCapability{
+						MimeType:     MimeTypeFlexFEC03,
+						ClockRate:    90000,
+						Channels:     0,
+						SDPFmtpLine:  "repair-window=10000000",
+						RTCPFeedback: nil,
+					},
+				},
+			},
+			ResultPayloadType: 1,
+		},
+		{
+			Haystack: []RTPCodecParameters{
+				{
+					PayloadType: 2,
+					RTPCodecCapability: RTPCodecCapability{
+						MimeType:     MimeTypeFlexFEC,
+						ClockRate:    90000,
+						Channels:     0,
+						SDPFmtpLine:  "repair-window=10000000",
+						RTCPFeedback: nil,
+					},
+				},
+				{
+					PayloadType: 1,
+					RTPCodecCapability: RTPCodecCapability{
+						MimeType:     MimeTypeFlexFEC03,
+						ClockRate:    90000,
+						Channels:     0,
+						SDPFmtpLine:  "repair-window=10000000",
+						RTCPFeedback: nil,
+					},
+				},
+			},
+			ResultPayloadType: 2,
+		},
+		{
+			Haystack: []RTPCodecParameters{
+				{
+					PayloadType: 100,
+					RTPCodecCapability: RTPCodecCapability{
+						MimeType:     MimeTypeH265,
+						ClockRate:    90000,
+						Channels:     0,
+						SDPFmtpLine:  "",
+						RTCPFeedback: nil,
+					},
+				},
+				{
+					PayloadType: 101,
+					RTPCodecCapability: RTPCodecCapability{
+						MimeType:     MimeTypeRTX,
+						ClockRate:    90000,
+						Channels:     0,
+						SDPFmtpLine:  "apt=100",
+						RTCPFeedback: nil,
+					},
+				},
+			},
+			ResultPayloadType: 0,
+		},
+	} {
+		assert.Equal(t, test.ResultPayloadType, findFECPayloadType(test.Haystack))
+	}
+}
diff --git a/rtpsender.go b/rtpsender.go
index 20522741..27d27ab8 100644
--- a/rtpsender.go
+++ b/rtpsender.go
@@ -355,7 +355,7 @@ func (r *RTPSender) Send(parameters RTPSendParameters) error {
 			parameters.Encodings[idx].FEC.SSRC,
 			codec.PayloadType,
 			findRTXPayloadType(codec.PayloadType, rtpParameters.Codecs),
-			0,
+			findFECPayloadType(rtpParameters.Codecs),
 			codec.RTPCodecCapability,
 			parameters.HeaderExtensions,
 		)