diff --git a/bridge_master.py b/bridge_master.py
index 1600e8c..d9bb577 100755
--- a/bridge_master.py
+++ b/bridge_master.py
@@ -2223,7 +2223,7 @@ if __name__ == '__main__':
             if CONFIG['SYSTEMS'][system]['MODE'] == 'OPENBRIDGE':
                 systems[system] = routerOBP(system, CONFIG, report_server)                
             else:
-                if CONFIG['SYSTEMS'][system]['ANNOUNCEMENT_LANGUAGE'] not in CONFIG['GLOBAL']['ANNOUNCEMENT_LANGUAGES'].split(','):
+                if CONFIG['SYSTEMS'][system]['MODE'] == 'MASTER' and CONFIG['SYSTEMS'][system]['ANNOUNCEMENT_LANGUAGE'] not in CONFIG['GLOBAL']['ANNOUNCEMENT_LANGUAGES'].split(','):
                     logger.warning('(GLOBAL) Invalid language in ANNOUNCEMENT_LANGUAGE, skipping system %s',system)
                     continue
                 systems[system] = routerHBP(system, CONFIG, report_server)