diff --git a/app/models/employee.rb b/app/models/employee.rb
index f27adf29..1af33498 100755
--- a/app/models/employee.rb
+++ b/app/models/employee.rb
@@ -41,14 +41,15 @@ class Employee < ApplicationRecord
     if (session_token)
       user = Employee.find_by_token_session(session_token)
       expiry_time = login_expiry_time
-
-      if user && user.session_expiry.utc > DateTime.now.utc
-        #Extend the login time each time authenticatation take place
-        user.session_expiry = user.session_expiry.utc + expiry_time.minutes
-        user.save
-        return true
-      else
-        return false
+      if !user.session_expiry.nil?
+        if user && user.session_expiry.utc > DateTime.now.utc
+          #Extend the login time each time authenticatation take place
+          user.session_expiry = user.session_expiry.utc + expiry_time.minutes
+          user.save
+          return true
+        else
+          return false
+        end
       end
     end