diff --git a/app/controllers/api/check_in_process_controller.rb b/app/controllers/api/check_in_process_controller.rb
index 7ad00d67..883fb1ea 100644
--- a/app/controllers/api/check_in_process_controller.rb
+++ b/app/controllers/api/check_in_process_controller.rb
@@ -15,7 +15,7 @@ class Api::CheckInProcessController < Api::ApiController
 
 				lookup_checkout_time = Lookup.collection_of("checkout_alert_time")
 				alert_time_min = 0
-				if !lookup_checkout_time.nil?
+				if !lookup_checkout_time.empty?
 					now = Time.now.utc
 			        lookup_checkout_time.each do |checkout_time|
 			          arr_time = checkout_time[0].split("-")
diff --git a/app/controllers/origami/check_in_process_controller.rb b/app/controllers/origami/check_in_process_controller.rb
index 40a28398..14d5c90c 100644
--- a/app/controllers/origami/check_in_process_controller.rb
+++ b/app/controllers/origami/check_in_process_controller.rb
@@ -3,7 +3,7 @@ class Origami::CheckInProcessController < BaseOrigamiController
 	def check_in_process
 		lookup_checkout_time = Lookup.collection_of("checkout_time")
 		checkout_at = Time.now.utc
-		if !lookup_checkout_time.nil?
+		if !lookup_checkout_time.empty?
 			lookup_checkout_time.each do |checkout_time|
 				arr_time = checkout_time[0].split("-")
 				start_time = Time.parse(arr_time[0].strip).utc.strftime("%H:%M%p")
diff --git a/app/models/dining_facility.rb b/app/models/dining_facility.rb
index 1feab5d9..c4da3475 100755
--- a/app/models/dining_facility.rb
+++ b/app/models/dining_facility.rb
@@ -80,7 +80,7 @@ class DiningFacility < ApplicationRecord
     if booking
       lookup_checkout_time = Lookup.collection_of("checkout_alert_time")
       free_time_min = 0
-      if !lookup_checkout_time.nil?
+      if !lookup_checkout_time.empty?
         now = Time.now.utc
         lookup_checkout_time.each do |checkout_time|
           arr_time = checkout_time[0].split("-")
@@ -119,7 +119,7 @@ class DiningFacility < ApplicationRecord
     if bookings
       lookup_checkout_time = Lookup.collection_of("checkout_alert_time")
       free_time_min = 0
-      if !lookup_checkout_time.nil?
+      if !lookup_checkout_time.empty?
         now = Time.now.utc
         lookup_checkout_time.each do |checkout_time|
           arr_time = checkout_time[0].split("-")