diff --git a/cmd/lncli/cmd_pay.go b/cmd/lncli/cmd_pay.go
index 3388a4b9..a90330b5 100644
--- a/cmd/lncli/cmd_pay.go
+++ b/cmd/lncli/cmd_pay.go
@@ -58,8 +58,8 @@ var (
 			"displayed. Only valid in combination with --json.",
 	}
 
-	maxShardsFlag = cli.UintFlag{
-		Name: "max_shards",
+	maxPartsFlag = cli.UintFlag{
+		Name: "max_parts",
 		Usage: "the maximum number of partial payments that may be " +
 			"used",
 		Value: 1,
@@ -107,7 +107,7 @@ func paymentFlags() []cli.Flag {
 			Name:  "allow_self_payment",
 			Usage: "allow sending a circular payment to self",
 		},
-		dataFlag, inflightUpdatesFlag, maxShardsFlag, jsonFlag,
+		dataFlag, inflightUpdatesFlag, maxPartsFlag, jsonFlag,
 	}
 }
 
@@ -337,7 +337,7 @@ func sendPaymentRequest(ctx *cli.Context,
 
 	req.AllowSelfPayment = ctx.Bool("allow_self_payment")
 
-	req.MaxShards = uint32(ctx.Uint(maxShardsFlag.Name))
+	req.MaxParts = uint32(ctx.Uint(maxPartsFlag.Name))
 
 	// Parse custom data records.
 	data := ctx.String(dataFlag.Name)
diff --git a/lnrpc/routerrpc/router.pb.go b/lnrpc/routerrpc/router.pb.go
index 2b2ed2d8..ae57eacd 100644
--- a/lnrpc/routerrpc/router.pb.go
+++ b/lnrpc/routerrpc/router.pb.go
@@ -281,7 +281,7 @@ type SendPaymentRequest struct {
 	//*
 	//The maximum number of partial payments that may be use to complete the full
 	//amount.
-	MaxShards uint32 `protobuf:"varint,17,opt,name=max_shards,json=maxShards,proto3" json:"max_shards,omitempty"`
+	MaxParts uint32 `protobuf:"varint,17,opt,name=max_parts,json=maxParts,proto3" json:"max_parts,omitempty"`
 	//*
 	//If set, only the final payment update is streamed back. Intermediate updates
 	//that show which htlcs are still in flight are suppressed.
@@ -428,9 +428,9 @@ func (m *SendPaymentRequest) GetDestFeatures() []lnrpc.FeatureBit {
 	return nil
 }
 
-func (m *SendPaymentRequest) GetMaxShards() uint32 {
+func (m *SendPaymentRequest) GetMaxParts() uint32 {
 	if m != nil {
-		return m.MaxShards
+		return m.MaxParts
 	}
 	return 0
 }
@@ -1746,148 +1746,148 @@ func init() {
 func init() { proto.RegisterFile("routerrpc/router.proto", fileDescriptor_7a0613f69d37b0a5) }
 
 var fileDescriptor_7a0613f69d37b0a5 = []byte{
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+	0x36, 0x3a, 0x43, 0xd2, 0x6f, 0xbf, 0x39, 0xe5, 0x69, 0x4f, 0x48, 0x36, 0xd0, 0x0a, 0xe8, 0x73,
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+	0xaa, 0x99, 0x67, 0xec, 0xf9, 0x21, 0x7a, 0xf8, 0xc1, 0x07, 0x6e, 0x23, 0x7d, 0x0c, 0x48, 0xf8,
+	0x99, 0x82, 0x8e, 0xa0, 0x96, 0x7d, 0xcf, 0x9d, 0x1f, 0xa2, 0x6c, 0x77, 0x5c, 0xf3, 0xd4, 0x5b,
+	0x63, 0xe3, 0x25, 0x68, 0x46, 0xcc, 0x5c, 0x9f, 0x17, 0xa9, 0x7c, 0x71, 0xa1, 0x46, 0xc6, 0xca,
+	0x8d, 0x67, 0x5c, 0x63, 0x6f, 0xad, 0x4c, 0xde, 0x6b, 0x7a, 0xfc, 0x40, 0x5c, 0xbc, 0x79, 0x6e,
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+	0xec, 0xac, 0xb9, 0x75, 0xae, 0xec, 0xc6, 0xdd, 0xb7, 0xd2, 0xc6, 0xbd, 0x75, 0x97, 0xb3, 0x67,
+	0x0a, 0x3a, 0x4d, 0x78, 0x91, 0xfe, 0xa4, 0xf2, 0x11, 0xa2, 0xd7, 0xd7, 0x37, 0x91, 0x79, 0xac,
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+	0x1e, 0x7d, 0xf3, 0xbb, 0x83, 0x4b, 0x97, 0x4d, 0xe7, 0x17, 0xfb, 0xa3, 0xd0, 0x3f, 0x10, 0xbf,
+	0x64, 0x04, 0x6e, 0x70, 0x19, 0x50, 0xf6, 0x3e, 0x8c, 0xae, 0x0e, 0xbc, 0x60, 0x7c, 0x20, 0xea,
+	0xe6, 0x60, 0x61, 0xe7, 0x62, 0x43, 0xfc, 0x34, 0xf9, 0xd3, 0xff, 0x04, 0x00, 0x00, 0xff, 0xff,
+	0x16, 0x00, 0xbc, 0x19, 0xca, 0x14, 0x00, 0x00,
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
diff --git a/lnrpc/routerrpc/router.proto b/lnrpc/routerrpc/router.proto
index 9065715a..673ffb98 100644
--- a/lnrpc/routerrpc/router.proto
+++ b/lnrpc/routerrpc/router.proto
@@ -119,7 +119,7 @@ message SendPaymentRequest {
     The maximum number of partial payments that may be use to complete the full
     amount.
     */
-    uint32 max_shards = 17;
+    uint32 max_parts = 17;
 
     /**
     If set, only the final payment update is streamed back. Intermediate updates
diff --git a/lnrpc/routerrpc/router_backend.go b/lnrpc/routerrpc/router_backend.go
index 2803f447..354e5e29 100644
--- a/lnrpc/routerrpc/router_backend.go
+++ b/lnrpc/routerrpc/router_backend.go
@@ -549,11 +549,11 @@ func (r *RouterBackend) extractIntentFromSendRequest(
 
 	// Take max htlcs from the request. Map zero to one for backwards
 	// compatibility.
-	maxShards := rpcPayReq.MaxShards
-	if maxShards == 0 {
-		maxShards = 1
+	maxParts := rpcPayReq.MaxParts
+	if maxParts == 0 {
+		maxParts = 1
 	}
-	payIntent.MaxShards = maxShards
+	payIntent.MaxParts = maxParts
 
 	// Take fee limit from request.
 	payIntent.FeeLimit, err = lnrpc.UnmarshallAmt(
diff --git a/lnrpc/routerrpc/router_server_deprecated.go b/lnrpc/routerrpc/router_server_deprecated.go
index 199ec841..66f3d368 100644
--- a/lnrpc/routerrpc/router_server_deprecated.go
+++ b/lnrpc/routerrpc/router_server_deprecated.go
@@ -84,7 +84,7 @@ func (s *Server) TrackPayment(request *TrackPaymentRequest,
 func (s *Server) SendPayment(request *SendPaymentRequest,
 	stream Router_SendPaymentServer) error {
 
-	if request.MaxShards > 1 {
+	if request.MaxParts > 1 {
 		return errors.New("for multi-part payments, use SendPaymentV2")
 	}
 
diff --git a/lntest/itest/lnd_send_multi_path_payment.go b/lntest/itest/lnd_send_multi_path_payment.go
index 318f2556..22732000 100644
--- a/lntest/itest/lnd_send_multi_path_payment.go
+++ b/lntest/itest/lnd_send_multi_path_payment.go
@@ -74,7 +74,7 @@ func testSendMultiPathPayment(net *lntest.NetworkHarness, t *harnessTest) {
 		t, net.Alice,
 		&routerrpc.SendPaymentRequest{
 			PaymentRequest: payReq,
-			MaxShards:      10,
+			MaxParts:      10,
 			TimeoutSeconds: 60,
 			FeeLimitMsat:   noFeeLimitMsat,
 		},
diff --git a/routing/integrated_routing_context_test.go b/routing/integrated_routing_context_test.go
index cc71560d..b223668e 100644
--- a/routing/integrated_routing_context_test.go
+++ b/routing/integrated_routing_context_test.go
@@ -88,7 +88,7 @@ func (h htlcAttempt) String() string {
 
 // testPayment launches a test payment and asserts that it is completed after
 // the expected number of attempts.
-func (c *integratedRoutingContext) testPayment(maxShards uint32) ([]htlcAttempt,
+func (c *integratedRoutingContext) testPayment(maxParts uint32) ([]htlcAttempt,
 	error) {
 
 	var (
@@ -137,7 +137,7 @@ func (c *integratedRoutingContext) testPayment(maxShards uint32) ([]htlcAttempt,
 		DestFeatures:   lnwire.NewFeatureVector(mppFeatures, nil),
 		Amount:         c.amt,
 		CltvLimit:      math.MaxUint32,
-		MaxShards:      maxShards,
+		MaxParts:       maxParts,
 	}
 
 	session, err := newPaymentSession(
diff --git a/routing/integrated_routing_test.go b/routing/integrated_routing_test.go
index 1d897d8a..4f044d8e 100644
--- a/routing/integrated_routing_test.go
+++ b/routing/integrated_routing_test.go
@@ -85,7 +85,7 @@ type mppSendTestCase struct {
 
 	graph           func(g *mockGraph)
 	expectedFailure bool
-	maxShards       uint32
+	maxParts        uint32
 }
 
 const (
@@ -152,7 +152,7 @@ var mppTestCases = []mppSendTestCase{
 				chans: []uint64{chanSourceIm2, chanIm2Target},
 			},
 		},
-		maxShards: 1000,
+		maxParts: 1000,
 	},
 
 	// Test that a cap on the max htlcs makes it impossible to pay.
@@ -165,7 +165,7 @@ var mppTestCases = []mppSendTestCase{
 		expectedAttempts:  2,
 		expectedSuccesses: []expectedHtlcSuccess{},
 		expectedFailure:   true,
-		maxShards:         1,
+		maxParts:          1,
 	},
 
 	// Test that an attempt is made to split the payment in multiple parts
@@ -190,7 +190,7 @@ var mppTestCases = []mppSendTestCase{
 			},
 		},
 		expectedFailure: true,
-		maxShards:       1000,
+		maxParts:        1000,
 	},
 
 	// Test that no attempts are made if the total local balance is
@@ -203,7 +203,7 @@ var mppTestCases = []mppSendTestCase{
 		amt:              300000,
 		expectedAttempts: 0,
 		expectedFailure:  true,
-		maxShards:        10,
+		maxParts:         10,
 	},
 }
 
@@ -226,7 +226,7 @@ func testMppSend(t *testing.T, testCase *mppSendTestCase) {
 
 	ctx.amt = lnwire.NewMSatFromSatoshis(testCase.amt)
 
-	attempts, err := ctx.testPayment(testCase.maxShards)
+	attempts, err := ctx.testPayment(testCase.maxParts)
 	switch {
 	case err == nil && testCase.expectedFailure:
 		t.Fatal("expected payment to fail")
diff --git a/routing/payment_session.go b/routing/payment_session.go
index 5cd8d9f7..ed22b8c6 100644
--- a/routing/payment_session.go
+++ b/routing/payment_session.go
@@ -263,11 +263,11 @@ func (p *paymentSession) RequestRoute(maxAmt, feeLimit lnwire.MilliSatoshi,
 			}
 
 			// No splitting if this is the last shard.
-			isLastShard := activeShards+1 >= p.payment.MaxShards
+			isLastShard := activeShards+1 >= p.payment.MaxParts
 			if isLastShard {
 				p.log.Debugf("not splitting because shard "+
 					"limit %v has been reached",
-					p.payment.MaxShards)
+					p.payment.MaxParts)
 
 				return nil, errNoPathFound
 			}
diff --git a/routing/router.go b/routing/router.go
index 2d286ce5..c3773fe6 100644
--- a/routing/router.go
+++ b/routing/router.go
@@ -1625,9 +1625,9 @@ type LightningPayment struct {
 	// fail.
 	DestCustomRecords record.CustomSet
 
-	// MaxShards is the maximum number of partial payments that may be used
+	// MaxParts is the maximum number of partial payments that may be used
 	// to complete the full amount.
-	MaxShards uint32
+	MaxParts uint32
 }
 
 // SendPayment attempts to send a payment as described within the passed
diff --git a/rpcserver.go b/rpcserver.go
index 29f40d7a..2f824de8 100644
--- a/rpcserver.go
+++ b/rpcserver.go
@@ -3966,7 +3966,7 @@ func (r *rpcServer) dispatchPaymentIntent(
 
 			// Don't enable multi-part payments on the main rpc.
 			// Users need to use routerrpc for that.
-			MaxShards: 1,
+			MaxParts: 1,
 		}
 
 		preImage, route, routerErr = r.server.chanRouter.SendPayment(