diff --git a/handle_signup.go b/handle_signup.go
index 31c796b..738c89c 100644
--- a/handle_signup.go
+++ b/handle_signup.go
@@ -69,11 +69,7 @@ func (app *App) handlePublicSignup(w http.ResponseWriter, r *http.Request) {
 	}
 
 	// Find or create participant by email.
-	name := body.PreferredName
-	if body.TicketName != "" {
-		name = body.TicketName
-	}
-	participant, _, err := app.upsertParticipant(body.Email, name)
+	participant, _, err := app.upsertParticipant(body.Email, body.PreferredName)
 	if err != nil {
 		writeError(w, "internal error", http.StatusInternalServerError)
 		return