diff --git a/site_ansto/instrument/TEST_SICS/fakePfeiffer/tpg261/SIM_PFEIFFER.py b/site_ansto/instrument/TEST_SICS/fakePfeiffer/tpg261/SIM_PFEIFFER.py
index 7e638110..3ce68d8b 100755
--- a/site_ansto/instrument/TEST_SICS/fakePfeiffer/tpg261/SIM_PFEIFFER.py
+++ b/site_ansto/instrument/TEST_SICS/fakePfeiffer/tpg261/SIM_PFEIFFER.py
@@ -119,7 +119,7 @@ if __name__ == "__main__":
         # add screen object as a reader to the reactor
         reactor.addReader(screen)
 
-    myFactory = PfeifferFactory(PfeifferProtocol, myDev, "\r")
+    myFactory = PfeifferFactory(PfeifferProtocol, myDev, "\r\n")
     lc = LoopingCall(device_display)
     lc.start(0.250)
     reactor.listenTCP(myPort, myFactory) # server