diff --git a/io/transfer/transfer.go b/io/transfer/transfer.go
index 58703484..85ab68c3 100644
--- a/io/transfer/transfer.go
+++ b/io/transfer/transfer.go
@@ -2,11 +2,11 @@
 //
 // The transfer protocol is as follows:
 //
-// - Data sources are registered with SourceOps, data targets with TargetOps.
-// - A data source receives a RequestEvent when a transfer is initiated.
-//   It must respond with an OfferOp.
-// - The target receives a DataEvent when transferring to it. It must close
-//   the event data after use.
+//  - Data sources are registered with SourceOps, data targets with TargetOps.
+//  - A data source receives a RequestEvent when a transfer is initiated.
+//    It must respond with an OfferOp.
+//  - The target receives a DataEvent when transferring to it. It must close
+//    the event data after use.
 //
 // When a user initiates a pointer-guided drag and drop transfer, the
 // source as well as all potential targets receive an InitiateEvent.