diff --git a/lib/rubygems/specification.rb b/lib/rubygems/specification.rb
index e1af1dfd0114..245684fc4429 100644
--- a/lib/rubygems/specification.rb
+++ b/lib/rubygems/specification.rb
@@ -384,6 +384,7 @@ def licenses=(licenses)
   #     "mailing_list_uri"  => "https://groups.example.com/bestgemever",
   #     "source_code_uri"   => "https://example.com/user/bestgemever",
   #     "wiki_uri"          => "https://example.com/user/bestgemever/wiki"
+  #     "funding_uri"       => "https://example.com/donate"
   #   }
   #
   # These links will be used on your gem's page on rubygems.org and must pass
diff --git a/lib/rubygems/specification_policy.rb b/lib/rubygems/specification_policy.rb
index dbbbda40b2d6..a50fafbc8235 100644
--- a/lib/rubygems/specification_policy.rb
+++ b/lib/rubygems/specification_policy.rb
@@ -18,6 +18,7 @@ class Gem::SpecificationPolicy
     mailing_list_uri
     source_code_uri
     wiki_uri
+    funding_uri
   ].freeze # :nodoc:
 
   def initialize(specification)
diff --git a/test/rubygems/test_gem_specification.rb b/test/rubygems/test_gem_specification.rb
index c808a78ec879..b7df8b71fd20 100644
--- a/test/rubygems/test_gem_specification.rb
+++ b/test/rubygems/test_gem_specification.rb
@@ -3532,7 +3532,8 @@ def test_metadata_validates_ok
         s.metadata = {
           "one"          => "two",
           "home"         => "three",
-          "homepage_uri" => "https://example.com/user/repo"
+          "homepage_uri" => "https://example.com/user/repo",
+          "funding_uri"  => "https://example.com/donate"
         }
       end