diff --git a/examples/multipro/main.go b/examples/multipro/main.go
index d3ded936304ab42be9531180ea79d12691f94f82..53efce6cbf674720d037106f7e228edab6e66628 100644
--- a/examples/multipro/main.go
+++ b/examples/multipro/main.go
@@ -46,6 +46,7 @@ func main() {
 
 	log.Printf("This is a conversation between %s and %s\n", h1.host.ID(), h2.host.ID())
 
+	// send messages using the protocols
 	h1.pingProtocol.Ping(h2)
 	h2.pingProtocol.Ping(h1)
 	h1.echoProtocol.Echo(h2)
diff --git a/examples/multipro/node.go b/examples/multipro/node.go
index c35e30d6234682dfbd8edca6b971efe898fc9b6c..7892bfbb8b88061d8efd0bcd67c8fe295a081f5c 100644
--- a/examples/multipro/node.go
+++ b/examples/multipro/node.go
@@ -46,7 +46,7 @@ func NewMessageData(nodeId string, messageId string, gossip bool) *p2p.MessageDa
 type Node struct {
 	host         host.Host     // lib-p2p host
 	pingProtocol *PingProtocol // ping protocol impl
-	echoProtocol *EchoProtocol // echp protocl imp
+	echoProtocol *EchoProtocol // echo protocol impl
 }
 
 // create a new node with its implemented protocols