diff --git a/lnwire/open_channel.go b/lnwire/open_channel.go
index 950752eb8..35d80038d 100644
--- a/lnwire/open_channel.go
+++ b/lnwire/open_channel.go
@@ -68,6 +68,9 @@ type OpenChannel struct {
 	// FeePerKiloWeight is the initial fee rate that the initiator suggests
 	// for both commitment transaction. This value is expressed in sat per
 	// kilo-weight.
+	//
+	// TODO(halseth): make SatPerKWeight when fee estimation is in own
+	// package. Currently this will cause an import cycle.
 	FeePerKiloWeight uint32
 
 	// CsvDelay is the number of blocks to use for the relative time lock
diff --git a/lnwire/update_fee.go b/lnwire/update_fee.go
index 9937c3ab2..255028dcd 100644
--- a/lnwire/update_fee.go
+++ b/lnwire/update_fee.go
@@ -1,6 +1,8 @@
 package lnwire
 
-import "io"
+import (
+	"io"
+)
 
 // UpdateFee is the message the channel initiator sends to the other peer if
 // the channel commitment fee needs to be updated.
@@ -10,6 +12,9 @@ type UpdateFee struct {
 
 	// FeePerKw is the fee-per-kw on commit transactions that the sender of
 	// this message wants to use for this channel.
+	//
+	// TODO(halseth): make SatPerKWeight when fee estimation is moved to
+	// own package. Currently this will cause an import cycle.
 	FeePerKw uint32
 }