diff --git a/backend/internal/services/ticket_service.go b/backend/internal/services/ticket_service.go
index 07c0bd5..dec5e68 100644
--- a/backend/internal/services/ticket_service.go
+++ b/backend/internal/services/ticket_service.go
@@ -129,7 +129,7 @@ func (s *TicketService) AddMessage(ctx context.Context, ticketID string, userID
 		return nil, errors.New("ticket not found")
 	}
 
-	query := `
+	query = `
 		INSERT INTO ticket_messages (ticket_id, user_id, message, created_at)
 		VALUES ($1, $2, $3, NOW())
 		RETURNING id, ticket_id, user_id, message, created_at