diff --git a/internal/handshake/tls_extension.go b/internal/handshake/tls_extension.go
index 98ad3a578..1e6b18ef5 100644
--- a/internal/handshake/tls_extension.go
+++ b/internal/handshake/tls_extension.go
@@ -13,7 +13,6 @@ const (
 	initialMaxDataParameterID        transportParameterID = 0x1
 	initialMaxStreamsBiDiParameterID transportParameterID = 0x2
 	idleTimeoutParameterID           transportParameterID = 0x3
-	omitConnectionIDParameterID      transportParameterID = 0x4
 	maxPacketSizeParameterID         transportParameterID = 0x5
 	statelessResetTokenParameterID   transportParameterID = 0x6
 	initialMaxStreamsUniParameterID  transportParameterID = 0x8
diff --git a/internal/handshake/transport_parameter_test.go b/internal/handshake/transport_parameter_test.go
index 44f383553..8e365bb10 100644
--- a/internal/handshake/transport_parameter_test.go
+++ b/internal/handshake/transport_parameter_test.go
@@ -116,10 +116,9 @@ var _ = Describe("Transport Parameters", func() {
 				ConnectionFlowControlWindow: 0x4321,
 				MaxBidiStreams:              1337,
 				MaxUniStreams:               7331,
-				OmitConnectionID:            true,
 				IdleTimeout:                 42 * time.Second,
 			}
-			Expect(p.String()).To(Equal("&handshake.TransportParameters{StreamFlowControlWindow: 0x1234, ConnectionFlowControlWindow: 0x4321, MaxBidiStreams: 1337, MaxUniStreams: 7331, OmitConnectionID: true, IdleTimeout: 42s}"))
+			Expect(p.String()).To(Equal("&handshake.TransportParameters{StreamFlowControlWindow: 0x1234, ConnectionFlowControlWindow: 0x4321, MaxBidiStreams: 1337, MaxUniStreams: 7331, IdleTimeout: 42s}"))
 		})
 
 		Context("parsing", func() {
@@ -147,13 +146,6 @@ var _ = Describe("Transport Parameters", func() {
 				Expect(params.MaxPacketSize).To(Equal(protocol.ByteCount(0x7331)))
 			})
 
-			It("saves if it should omit the connection ID", func() {
-				parameters[omitConnectionIDParameterID] = []byte{}
-				params, err := readTransportParameters(paramsMapToList(parameters))
-				Expect(err).ToNot(HaveOccurred())
-				Expect(params.OmitConnectionID).To(BeTrue())
-			})
-
 			It("rejects the parameters if the initial_max_stream_data is missing", func() {
 				delete(parameters, initialMaxStreamDataParameterID)
 				_, err := readTransportParameters(paramsMapToList(parameters))
@@ -211,12 +203,6 @@ var _ = Describe("Transport Parameters", func() {
 				Expect(err).To(MatchError("wrong length for idle_timeout: 3 (expected 2)"))
 			})
 
-			It("rejects the parameters if omit_connection_id is non-empty", func() {
-				parameters[omitConnectionIDParameterID] = []byte{0} // should be empty
-				_, err := readTransportParameters(paramsMapToList(parameters))
-				Expect(err).To(MatchError("wrong length for omit_connection_id: 1 (expected empty)"))
-			})
-
 			It("rejects the parameters if max_packet_size has the wrong length", func() {
 				parameters[maxPacketSizeParameterID] = []byte{0x11} // should be 2 bytes
 				_, err := readTransportParameters(paramsMapToList(parameters))
@@ -267,12 +253,6 @@ var _ = Describe("Transport Parameters", func() {
 				Expect(values).To(HaveKeyWithValue(idleTimeoutParameterID, []byte{0xca, 0xfe}))
 				Expect(values).To(HaveKeyWithValue(maxPacketSizeParameterID, []byte{0x5, 0xac})) // 1452 = 0x5ac
 			})
-
-			It("request ommission of the connection ID", func() {
-				params.OmitConnectionID = true
-				values := paramsListToMap(params.getTransportParameters())
-				Expect(values).To(HaveKeyWithValue(omitConnectionIDParameterID, []byte{}))
-			})
 		})
 	})
 })
diff --git a/internal/handshake/transport_parameters.go b/internal/handshake/transport_parameters.go
index fce1e3f21..7a2243779 100644
--- a/internal/handshake/transport_parameters.go
+++ b/internal/handshake/transport_parameters.go
@@ -26,7 +26,7 @@ type TransportParameters struct {
 	MaxBidiStreams uint16 // only used for IETF QUIC
 	MaxStreams     uint32 // only used for gQUIC
 
-	OmitConnectionID bool
+	OmitConnectionID bool // only used for gQUIC
 	IdleTimeout      time.Duration
 }
 
@@ -132,11 +132,6 @@ func readTransportParameters(paramsList []transportParameter) (*TransportParamet
 				return nil, fmt.Errorf("wrong length for idle_timeout: %d (expected 2)", len(p.Value))
 			}
 			params.IdleTimeout = utils.MaxDuration(protocol.MinRemoteIdleTimeout, time.Duration(binary.BigEndian.Uint16(p.Value))*time.Second)
-		case omitConnectionIDParameterID:
-			if len(p.Value) != 0 {
-				return nil, fmt.Errorf("wrong length for omit_connection_id: %d (expected empty)", len(p.Value))
-			}
-			params.OmitConnectionID = true
 		case maxPacketSizeParameterID:
 			if len(p.Value) != 2 {
 				return nil, fmt.Errorf("wrong length for max_packet_size: %d (expected 2)", len(p.Value))
@@ -178,14 +173,11 @@ func (p *TransportParameters) getTransportParameters() []transportParameter {
 		{idleTimeoutParameterID, idleTimeout},
 		{maxPacketSizeParameterID, maxPacketSize},
 	}
-	if p.OmitConnectionID {
-		params = append(params, transportParameter{omitConnectionIDParameterID, []byte{}})
-	}
 	return params
 }
 
 // String returns a string representation, intended for logging.
 // It should only used for IETF QUIC.
 func (p *TransportParameters) String() string {
-	return fmt.Sprintf("&handshake.TransportParameters{StreamFlowControlWindow: %#x, ConnectionFlowControlWindow: %#x, MaxBidiStreams: %d, MaxUniStreams: %d, OmitConnectionID: %t, IdleTimeout: %s}", p.StreamFlowControlWindow, p.ConnectionFlowControlWindow, p.MaxBidiStreams, p.MaxUniStreams, p.OmitConnectionID, p.IdleTimeout)
+	return fmt.Sprintf("&handshake.TransportParameters{StreamFlowControlWindow: %#x, ConnectionFlowControlWindow: %#x, MaxBidiStreams: %d, MaxUniStreams: %d, IdleTimeout: %s}", p.StreamFlowControlWindow, p.ConnectionFlowControlWindow, p.MaxBidiStreams, p.MaxUniStreams, p.IdleTimeout)
 }