diff --git a/bootstrap/types.go b/bootstrap/types.go
index eacc41e9..7ad3ec26 100644
--- a/bootstrap/types.go
+++ b/bootstrap/types.go
@@ -122,10 +122,12 @@ func (m *Request) SetInfo(info NodeInfo) {
 	m.Info = info
 }
 
+// Size returns the size necessary for a binary representation of the state.
 func (x Request_State) Size() int {
 	return 4
 }
 
+// Bytes returns a binary representation of the state.
 func (x Request_State) Bytes() []byte {
 	data := make([]byte, x.Size())
 
diff --git a/service/role.go b/service/role.go
index 3af09ab6..64a00744 100644
--- a/service/role.go
+++ b/service/role.go
@@ -22,10 +22,12 @@ func (nt NodeRole) String() string {
 	}
 }
 
+// Size returns the size necessary for a binary representation of the NodeRole.
 func (nt NodeRole) Size() int {
 	return 4
 }
 
+// Bytes returns a binary representation of the NodeRole.
 func (nt NodeRole) Bytes() []byte {
 	data := make([]byte, nt.Size())