diff --git a/etc/icinga2/scripts/mail-host-notification.sh b/etc/icinga2/scripts/mail-host-notification.sh
index 36562e647..c1e0e72fe 100755
--- a/etc/icinga2/scripts/mail-host-notification.sh
+++ b/etc/icinga2/scripts/mail-host-notification.sh
@@ -166,7 +166,7 @@ $ICINGAWEB2URL/monitoring/host/show?host=$(urlencode "$HOSTNAME")"
 fi
 
 ## Check whether verbose mode was enabled and log to syslog.
-if [ "$VERBOSE" == "true" ] ; then
+if [ "$VERBOSE" = "true" ] ; then
   logger "$PROG sends $SUBJECT => $USEREMAIL"
 fi
 
diff --git a/etc/icinga2/scripts/mail-service-notification.sh b/etc/icinga2/scripts/mail-service-notification.sh
index f9af433f7..c51c60cbd 100755
--- a/etc/icinga2/scripts/mail-service-notification.sh
+++ b/etc/icinga2/scripts/mail-service-notification.sh
@@ -171,7 +171,7 @@ $ICINGAWEB2URL/monitoring/service/show?host=$(urlencode "$HOSTNAME")&service=$(u
 fi
 
 ## Check whether verbose mode was enabled and log to syslog.
-if [ "$VERBOSE" == "true" ] ; then
+if [ "$VERBOSE" = "true" ] ; then
   logger "$PROG sends $SUBJECT => $USEREMAIL"
 fi