diff --git a/stdlib/resolv/0/resolv.rbs b/stdlib/resolv/0/resolv.rbs
index 9bf46b751..7f85d5b1a 100644
--- a/stdlib/resolv/0/resolv.rbs
+++ b/stdlib/resolv/0/resolv.rbs
@@ -921,7 +921,7 @@ end
 # A generic resource abstract class.
 #
 class Resolv::DNS::Resource::Generic < Resolv::DNS::Resource
-  def self.create: (Integer type_value, Integer class_value) -> Class
+  def self.create: (Integer type_value, Integer class_value) -> instance
 
   def self.decode_rdata: (Resolv::DNS::Message::MessageDecoder msg) -> instance
 
diff --git a/test/stdlib/resolv/DNS_test.rb b/test/stdlib/resolv/DNS_test.rb
index 35bb76305..7f9dcec2a 100644
--- a/test/stdlib/resolv/DNS_test.rb
+++ b/test/stdlib/resolv/DNS_test.rb
@@ -490,16 +490,3 @@ def test_close
       requester, :close
   end
 end
-
-class ResolvDNSResourceGenericSigletonTest < Test::Unit::TestCase
-  include TypeAssertions
-  library 'resolv'
-  testing 'singleton(::Resolv::DNS::Resource::Generic)'
-
-  def test_create
-    rrtype = assert_send_type "(Integer, Integer) -> Class",
-      Resolv::DNS::Resource::Generic, :create, Resolv::DNS::Resource::IN::ClassValue, 65280
-    assert_send_type "(String) -> ::Resolv::DNS::Resource::Generic",
-      rrtype, :new, ''
-  end
-end