From 4a4e463df0584f9d3355445b3c171f50b1c8890e Mon Sep 17 00:00:00 2001
From: Itay Grudev <itay+git2020@grudev.com>
Date: Tue, 23 Feb 2021 09:16:27 +0200
Subject: [PATCH] Fixed typo that stops the ArgumentError if @options[:on] is
 missing

---
 lib/recurrence/event/yearly.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/recurrence/event/yearly.rb b/lib/recurrence/event/yearly.rb
index eab5ba0..c7ca6f4 100644
--- a/lib/recurrence/event/yearly.rb
+++ b/lib/recurrence/event/yearly.rb
@@ -19,7 +19,7 @@ class Yearly < Base # :nodoc: all
       }.freeze
 
       private def validate
-        valid_month_day?(@options[:on].last)
+        valid_month_day?(@options[:on]&.last)
 
         if @options[:on].first.is_a?(Numeric)
           valid_month?(@options[:on].first)