diff --git a/importer/helpers/helpers.go b/importer/helpers/helpers.go
index bc6d92e2fa1..317fd60d0a9 100644
--- a/importer/helpers/helpers.go
+++ b/importer/helpers/helpers.go
@@ -62,6 +62,7 @@ func NewUnixfsNodeFromDag(nd *dag.ProtoNode) (*UnixfsNode, error) {
 	}, nil
 }
 
+// SetPrefix sets the CID Prefix
 func (n *UnixfsNode) SetPrefix(prefix *cid.Prefix) {
 	n.node.SetPrefix(prefix)
 }
diff --git a/merkledag/node.go b/merkledag/node.go
index 4090a99b87a..fa575097a2a 100644
--- a/merkledag/node.go
+++ b/merkledag/node.go
@@ -42,6 +42,7 @@ var v1CidPrefix = cid.Prefix{
 	Version:  1,
 }
 
+// PrefixForCidVersion returns the Protobuf prefix for a given CID version
 func PrefixForCidVersion(version int) (cid.Prefix, error) {
 	switch version {
 	case 0:
@@ -53,7 +54,7 @@ func PrefixForCidVersion(version int) (cid.Prefix, error) {
 	}
 }
 
-// SetPrefix sets the prefix if it is non nil, if prefix is nil then
+// SetPrefix sets the CID prefix if it is non nil, if prefix is nil then
 // it resets it the default value
 func (n *ProtoNode) SetPrefix(prefix *cid.Prefix) {
 	if prefix == nil {
diff --git a/mfs/dir.go b/mfs/dir.go
index 102ee15cb0e..60cae39c773 100644
--- a/mfs/dir.go
+++ b/mfs/dir.go
@@ -58,6 +58,7 @@ func NewDirectory(ctx context.Context, name string, node node.Node, parent child
 	}, nil
 }
 
+// SetPrefix sets the CID prefix
 func (d *Directory) SetPrefix(prefix *cid.Prefix) {
 	d.dirbuilder.SetPrefix(prefix)
 }
diff --git a/unixfs/hamt/hamt.go b/unixfs/hamt/hamt.go
index 17aa017335f..ccdffe7e442 100644
--- a/unixfs/hamt/hamt.go
+++ b/unixfs/hamt/hamt.go
@@ -125,6 +125,7 @@ func NewHamtFromDag(dserv dag.DAGService, nd node.Node) (*HamtShard, error) {
 	return ds, nil
 }
 
+// SetPrefix sets the CID Prefix
 func (ds *HamtShard) SetPrefix(prefix *cid.Prefix) {
 	ds.prefix = prefix
 }