diff --git a/cmd/towncon/main.go b/cmd/towncon/main.go
index 6b4ba86..a34f33a 100644
--- a/cmd/towncon/main.go
+++ b/cmd/towncon/main.go
@@ -63,6 +63,7 @@ type physicalData struct {
 }
 
 type rsvpData struct {
+	Username     string
 	Being        string
 	PhysicalData *physicalData `yaml:"PhysicalData,omitempty"`
 	Freeform     string
@@ -151,6 +152,7 @@ func rsvp(o opts) error {
 	}
 
 	rd := rsvpData{
+		Username:     o.Username,
 		Being:        being,
 		Freeform:     freeform,
 		PhysicalData: pd}