diff --git a/lib/time.rb b/lib/time.rb
index 1c66088..eaf9836 100644
--- a/lib/time.rb
+++ b/lib/time.rb
@@ -668,7 +668,7 @@ def rfc3339(time)
     private
 
     if RUBY_VERSION >= "3.2"
-      def _xmlschema(pattern, time)
+      def _xmlschema(pattern, time) # :nodoc:
         if pattern.match?(time)
           new(time)
         else
@@ -676,7 +676,7 @@ def _xmlschema(pattern, time)
         end
       end
     else
-      def _xmlschema(pattern, time)
+      def _xmlschema(pattern, time) # :nodoc:
         if pattern =~ time
           year = $1.to_i
           mon = $2.to_i