diff --git a/modules/rooms_pricing/includes/rooms_pricing.unit_pricing_calendar.inc b/modules/rooms_pricing/includes/rooms_pricing.unit_pricing_calendar.inc
index cdb556c..81ac5e6 100644
--- a/modules/rooms_pricing/includes/rooms_pricing.unit_pricing_calendar.inc
+++ b/modules/rooms_pricing/includes/rooms_pricing.unit_pricing_calendar.inc
@@ -68,7 +68,7 @@ class UnitPricingCalendar extends RoomsCalendar implements UnitPricingCalendarIn
     $reply = array(
       'full_price' => $price,
       'booking_price' => $booking_price,
-      'log' => '',
+      'log' => array(),
     );
 
     // Get settings to add to log