diff --git a/plugins/snmp/snmp_room_alert_ b/plugins/snmp/snmp_room_alert_
index e895f143..249c6c12 100755
--- a/plugins/snmp/snmp_room_alert_
+++ b/plugins/snmp/snmp_room_alert_
@@ -1,4 +1,5 @@
 #!/usr/bin/ruby
+# encoding: utf-8
 
 # Plugin to monitor Room Alert 11E environmental units.
 # Requires ruby and the ruby SNMP library.