diff --git a/contractcourt/channel_arbitrator.go b/contractcourt/channel_arbitrator.go
index ef1246f760..3404207b62 100644
--- a/contractcourt/channel_arbitrator.go
+++ b/contractcourt/channel_arbitrator.go
@@ -79,7 +79,7 @@ type WitnessBeacon interface {
 		payload *hop.Payload,
 		nextHopOnionBlob []byte) (*WitnessSubscription, error)
 
-	// LookupPreImage attempts to lookup a preimage in the global cache.
+	// LookupPreimage attempts to lookup a preimage in the global cache.
 	// True is returned for the second argument if the preimage is found.
 	LookupPreimage(payhash lntypes.Hash) (lntypes.Preimage, bool)
 
diff --git a/witness_beacon.go b/witness_beacon.go
index fe78f3665f..6c315d0c18 100644
--- a/witness_beacon.go
+++ b/witness_beacon.go
@@ -119,7 +119,7 @@ func (p *preimageBeacon) SubscribeUpdates(
 	return sub, nil
 }
 
-// LookupPreImage attempts to lookup a preimage in the global cache.  True is
+// LookupPreimage attempts to lookup a preimage in the global cache.  True is
 // returned for the second argument if the preimage is found.
 func (p *preimageBeacon) LookupPreimage(
 	payHash lntypes.Hash) (lntypes.Preimage, bool) {