diff --git a/devices/devices/sdp/sst.py b/devices/devices/sdp/sst.py
index 554b60bc6bb3f4975d675e37219368b3fb460de0..3961362e916e044cfa833e9929856a0c25493a85 100644
--- a/devices/devices/sdp/sst.py
+++ b/devices/devices/sdp/sst.py
@@ -135,7 +135,7 @@ class SST(hardware_device):
         try:
             self.opcua_connection.stop()
         except Exception as e:
-            self.warn_stream("Exception while stopping OPC ua connection in configure_for_off function: {}. Exception ignored".format(e))
+            self.warn_stream("Exception while stopping OPC UA connection in configure_for_off function: {}. Exception ignored".format(e))
 
     @log_exceptions()
     def configure_for_initialise(self):