diff --git a/secop_psi/ls370sim.py b/secop_psi/ls370sim.py
index c55e298..a445ef4 100644
--- a/secop_psi/ls370sim.py
+++ b/secop_psi/ls370sim.py
@@ -69,3 +69,4 @@ class Ls370Sim(Communicator):
         #if command.startswith('R'):
         #    print('> %s\t< %s' % (command, reply))
         return ';'.join(reply)
+