diff --git a/raft/util.go b/raft/util.go
index 21e986edc..738eebc0f 100644
--- a/raft/util.go
+++ b/raft/util.go
@@ -62,7 +62,7 @@ type EntryFormatter func([]byte) string
 // Message for debugging.
 func DescribeMessage(m pb.Message, f EntryFormatter) string {
 	var buf bytes.Buffer
-	fmt.Fprintf(&buf, "%d->%d %s Term:%d Log:%d/%d", m.From, m.To, m.Type, m.Term, m.LogTerm, m.Index)
+	fmt.Fprintf(&buf, "%x->%x %s Term:%d Log:%d/%d", m.From, m.To, m.Type, m.Term, m.LogTerm, m.Index)
 	if m.Reject {
 		fmt.Fprintf(&buf, " Rejected")
 	}