diff --git a/api/api_full.go b/api/api_full.go
index f3c04bfe6..597993fed 100644
--- a/api/api_full.go
+++ b/api/api_full.go
@@ -400,7 +400,7 @@ type FullNode interface {
 	// The Paych methods are for interacting with and managing payment channels
 
 	PaychGet(ctx context.Context, from, to address.Address, amt types.BigInt) (*ChannelInfo, error)
-	PaychGetWaitReady(context.Context, PaychWaitSentinel) (address.Address, error)
+	PaychGetWaitReady(context.Context, cid.Cid) (address.Address, error)
 	PaychList(context.Context) ([]address.Address, error)
 	PaychStatus(context.Context, address.Address) (*PaychStatus, error)
 	PaychSettle(context.Context, address.Address) (cid.Cid, error)
@@ -511,16 +511,14 @@ type PaychStatus struct {
 	Direction   PCHDir
 }
 
-type PaychWaitSentinel cid.Cid
-
 type ChannelInfo struct {
 	Channel      address.Address
-	WaitSentinel PaychWaitSentinel
+	WaitSentinel cid.Cid
 }
 
 type PaymentInfo struct {
 	Channel      address.Address
-	WaitSentinel PaychWaitSentinel
+	WaitSentinel cid.Cid
 	Vouchers     []*paych.SignedVoucher
 }
 
diff --git a/api/apistruct/struct.go b/api/apistruct/struct.go
index 09a694184..6221d9032 100644
--- a/api/apistruct/struct.go
+++ b/api/apistruct/struct.go
@@ -195,7 +195,7 @@ type FullNodeStruct struct {
 		MarketEnsureAvailable func(context.Context, address.Address, address.Address, types.BigInt) (cid.Cid, error) `perm:"sign"`
 
 		PaychGet                   func(ctx context.Context, from, to address.Address, amt types.BigInt) (*api.ChannelInfo, error)           `perm:"sign"`
-		PaychGetWaitReady          func(context.Context, api.PaychWaitSentinel) (address.Address, error)                                     `perm:"sign"`
+		PaychGetWaitReady          func(context.Context, cid.Cid) (address.Address, error)                                                   `perm:"sign"`
 		PaychList                  func(context.Context) ([]address.Address, error)                                                          `perm:"read"`
 		PaychStatus                func(context.Context, address.Address) (*api.PaychStatus, error)                                          `perm:"read"`
 		PaychSettle                func(context.Context, address.Address) (cid.Cid, error)                                                   `perm:"sign"`
@@ -844,7 +844,7 @@ func (c *FullNodeStruct) PaychGet(ctx context.Context, from, to address.Address,
 	return c.Internal.PaychGet(ctx, from, to, amt)
 }
 
-func (c *FullNodeStruct) PaychGetWaitReady(ctx context.Context, sentinel api.PaychWaitSentinel) (address.Address, error) {
+func (c *FullNodeStruct) PaychGetWaitReady(ctx context.Context, sentinel cid.Cid) (address.Address, error) {
 	return c.Internal.PaychGetWaitReady(ctx, sentinel)
 }
 
diff --git a/api/cbor_gen.go b/api/cbor_gen.go
index 2d83377a4..a90ea8b21 100644
--- a/api/cbor_gen.go
+++ b/api/cbor_gen.go
@@ -14,59 +14,6 @@ import (
 
 var _ = xerrors.Errorf
 
-func (t *PaychWaitSentinel) MarshalCBOR(w io.Writer) error {
-	if t == nil {
-		_, err := w.Write(cbg.CborNull)
-		return err
-	}
-	if _, err := w.Write([]byte{160}); err != nil {
-		return err
-	}
-
-	return nil
-}
-
-func (t *PaychWaitSentinel) UnmarshalCBOR(r io.Reader) error {
-	*t = PaychWaitSentinel{}
-
-	br := cbg.GetPeeker(r)
-	scratch := make([]byte, 8)
-
-	maj, extra, err := cbg.CborReadHeaderBuf(br, scratch)
-	if err != nil {
-		return err
-	}
-	if maj != cbg.MajMap {
-		return fmt.Errorf("cbor input should be of type map")
-	}
-
-	if extra > cbg.MaxLength {
-		return fmt.Errorf("PaychWaitSentinel: map struct too large (%d)", extra)
-	}
-
-	var name string
-	n := extra
-
-	for i := uint64(0); i < n; i++ {
-
-		{
-			sval, err := cbg.ReadStringBuf(br, scratch)
-			if err != nil {
-				return err
-			}
-
-			name = string(sval)
-		}
-
-		switch name {
-
-		default:
-			return fmt.Errorf("unknown struct field %d: '%s'", i, name)
-		}
-	}
-
-	return nil
-}
 func (t *PaymentInfo) MarshalCBOR(w io.Writer) error {
 	if t == nil {
 		_, err := w.Write(cbg.CborNull)
@@ -94,7 +41,7 @@ func (t *PaymentInfo) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	// t.WaitSentinel (api.PaychWaitSentinel) (struct)
+	// t.WaitSentinel (cid.Cid) (struct)
 	if len("WaitSentinel") > cbg.MaxLength {
 		return xerrors.Errorf("Value in field \"WaitSentinel\" was too long")
 	}
@@ -106,8 +53,8 @@ func (t *PaymentInfo) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	if err := t.WaitSentinel.MarshalCBOR(w); err != nil {
-		return err
+	if err := cbg.WriteCidBuf(scratch, w, t.WaitSentinel); err != nil {
+		return xerrors.Errorf("failed to write cid field t.WaitSentinel: %w", err)
 	}
 
 	// t.Vouchers ([]*paych.SignedVoucher) (slice)
@@ -180,15 +127,18 @@ func (t *PaymentInfo) UnmarshalCBOR(r io.Reader) error {
 				}
 
 			}
-			// t.WaitSentinel (api.PaychWaitSentinel) (struct)
+			// t.WaitSentinel (cid.Cid) (struct)
 		case "WaitSentinel":
 
 			{
 
-				if err := t.WaitSentinel.UnmarshalCBOR(br); err != nil {
-					return xerrors.Errorf("unmarshaling t.WaitSentinel: %w", err)
+				c, err := cbg.ReadCid(br)
+				if err != nil {
+					return xerrors.Errorf("failed to read cid field t.WaitSentinel: %w", err)
 				}
 
+				t.WaitSentinel = c
+
 			}
 			// t.Vouchers ([]*paych.SignedVoucher) (slice)
 		case "Vouchers":
diff --git a/gen/main.go b/gen/main.go
index a94f4daa1..e062f6a2e 100644
--- a/gen/main.go
+++ b/gen/main.go
@@ -43,7 +43,6 @@ func main() {
 	}
 
 	err = gen.WriteMapEncodersToFile("./api/cbor_gen.go", "api",
-		api.PaychWaitSentinel{},
 		api.PaymentInfo{},
 		api.SealedRef{},
 		api.SealedRefs{},
diff --git a/node/impl/paych/paych.go b/node/impl/paych/paych.go
index 0f72e7c9e..d6e4605d4 100644
--- a/node/impl/paych/paych.go
+++ b/node/impl/paych/paych.go
@@ -36,12 +36,12 @@ func (a *PaychAPI) PaychGet(ctx context.Context, from, to address.Address, amt t
 
 	return &api.ChannelInfo{
 		Channel:      ch,
-		WaitSentinel: api.PaychWaitSentinel(mcid),
+		WaitSentinel: mcid,
 	}, nil
 }
 
-func (a *PaychAPI) PaychGetWaitReady(ctx context.Context, sentinel api.PaychWaitSentinel) (address.Address, error) {
-	return a.PaychMgr.GetPaychWaitReady(ctx, cid.Cid(sentinel))
+func (a *PaychAPI) PaychGetWaitReady(ctx context.Context, sentinel cid.Cid) (address.Address, error) {
+	return a.PaychMgr.GetPaychWaitReady(ctx, sentinel)
 }
 
 func (a *PaychAPI) PaychAllocateLane(ctx context.Context, ch address.Address) (uint64, error) {