diff --git a/bin/oref0-setup.sh b/bin/oref0-setup.sh
index 3c58cc3a6..40924503b 100755
--- a/bin/oref0-setup.sh
+++ b/bin/oref0-setup.sh
@@ -452,7 +452,7 @@ else
 
        # Hack to check if radio_locale has been set in pump.ini. This is a temporary workaround for https://github.com/oskarpearson/mmeowlink/issues/55
        # It will remove empty line at the end of pump.ini and then append radio_locale if it's not there yet
-       grep -q radio_locale pump.ini &&  echo "$(< pump.ini)" > pump.ini ; echo "radio_locale=$radio_locale" >> pump.ini
+       grep -q radio_locale pump.ini ||  echo "$(< pump.ini)" > pump.ini ; echo "radio_locale=$radio_locale" >> pump.ini
     fi
 fi