diff --git a/pkg/beam/data/message.go b/pkg/beam/data/message.go
index 193fb7b241..0ebe90295a 100644
--- a/pkg/beam/data/message.go
+++ b/pkg/beam/data/message.go
@@ -72,6 +72,16 @@ func (m Message) Get(k string) []string {
 	return v
 }
 
+// GetOne returns the last value added at the key k,
+// or an empty string if there is no value.
+func (m Message) GetOne(k string) string {
+	var v string
+	if vals := m.Get(k); len(vals) > 0 {
+		v = vals[len(vals)-1]
+	}
+	return v
+}
+
 func (m Message) Pretty() string {
 	data, err := Decode(string(m))
 	if err != nil {
diff --git a/pkg/beam/data/message_test.go b/pkg/beam/data/message_test.go
index 7685769069..7224f33d11 100644
--- a/pkg/beam/data/message_test.go
+++ b/pkg/beam/data/message_test.go
@@ -51,3 +51,11 @@ func TestSetDelMessage(t *testing.T) {
 		t.Fatalf("'%v' != '%v'", output, expectedOutput)
 	}
 }
+
+func TestGetOne(t *testing.T) {
+	m := Empty().Set("shadok words", "ga", "bu", "zo", "meu")
+	val := m.GetOne("shadok words")
+	if val != "meu" {
+		t.Fatalf("%#v", val)
+	}
+}