diff --git a/lib/spoom/deadcode/indexer.rb b/lib/spoom/deadcode/indexer.rb
index 13e8a873..4faabe09 100644
--- a/lib/spoom/deadcode/indexer.rb
+++ b/lib/spoom/deadcode/indexer.rb
@@ -191,7 +191,7 @@ def visit_send(send)
         visit(send.recv)
 
         @plugins.each do |plugin|
-          plugin.internal_on_send(self, send)
+          plugin.on_send(send)
         end
 
         @index.reference_method(send.name, send.location)
diff --git a/lib/spoom/deadcode/plugins/action_mailer.rb b/lib/spoom/deadcode/plugins/action_mailer.rb
index c6b6552c..4341052b 100644
--- a/lib/spoom/deadcode/plugins/action_mailer.rb
+++ b/lib/spoom/deadcode/plugins/action_mailer.rb
@@ -7,8 +7,8 @@ module Plugins
       class ActionMailer < Base
         extend T::Sig
 
-        sig { override.params(indexer: Indexer, send: Send).void }
-        def on_send(indexer, send)
+        sig { override.params(send: Send).void }
+        def on_send(send)
           return unless send.recv.nil? && ActionPack::CALLBACKS.include?(send.name)
 
           send.each_arg(Prism::SymbolNode) do |arg|
diff --git a/lib/spoom/deadcode/plugins/actionpack.rb b/lib/spoom/deadcode/plugins/actionpack.rb
index fdf775ef..7784f76e 100644
--- a/lib/spoom/deadcode/plugins/actionpack.rb
+++ b/lib/spoom/deadcode/plugins/actionpack.rb
@@ -35,8 +35,8 @@ def on_define_method(symbol_def, definition)
           definition.ignored! if ignored_class_name?(owner.name)
         end
 
-        sig { override.params(indexer: Indexer, send: Send).void }
-        def on_send(indexer, send)
+        sig { override.params(send: Send).void }
+        def on_send(send)
           return unless send.recv.nil? && CALLBACKS.include?(send.name)
 
           arg = send.args.first
diff --git a/lib/spoom/deadcode/plugins/active_model.rb b/lib/spoom/deadcode/plugins/active_model.rb
index 43f2d0e8..de42f59b 100644
--- a/lib/spoom/deadcode/plugins/active_model.rb
+++ b/lib/spoom/deadcode/plugins/active_model.rb
@@ -10,8 +10,8 @@ class ActiveModel < Base
         ignore_classes_inheriting_from(/^(::)?ActiveModel::EachValidator$/)
         ignore_methods_named("validate_each")
 
-        sig { override.params(indexer: Indexer, send: Send).void }
-        def on_send(indexer, send)
+        sig { override.params(send: Send).void }
+        def on_send(send)
           return if send.recv
 
           case send.name
diff --git a/lib/spoom/deadcode/plugins/active_record.rb b/lib/spoom/deadcode/plugins/active_record.rb
index 885c4016..c9916923 100644
--- a/lib/spoom/deadcode/plugins/active_record.rb
+++ b/lib/spoom/deadcode/plugins/active_record.rb
@@ -70,8 +70,8 @@ class ActiveRecord < Base
           T::Array[String],
         )
 
-        sig { override.params(indexer: Indexer, send: Send).void }
-        def on_send(indexer, send)
+        sig { override.params(send: Send).void }
+        def on_send(send)
           if send.recv.nil? && CALLBACKS.include?(send.name)
             send.each_arg(Prism::SymbolNode) do |arg|
               @index.reference_method(arg.unescaped, send.location)
diff --git a/lib/spoom/deadcode/plugins/active_support.rb b/lib/spoom/deadcode/plugins/active_support.rb
index 2b39e123..477032f8 100644
--- a/lib/spoom/deadcode/plugins/active_support.rb
+++ b/lib/spoom/deadcode/plugins/active_support.rb
@@ -18,8 +18,8 @@ class ActiveSupport < Base
 
         SETUP_AND_TEARDOWN_METHODS = T.let(["setup", "teardown"], T::Array[String])
 
-        sig { override.params(indexer: Indexer, send: Send).void }
-        def on_send(indexer, send)
+        sig { override.params(send: Send).void }
+        def on_send(send)
           return unless send.recv.nil? && SETUP_AND_TEARDOWN_METHODS.include?(send.name)
 
           send.each_arg(Prism::SymbolNode) do |arg|
diff --git a/lib/spoom/deadcode/plugins/base.rb b/lib/spoom/deadcode/plugins/base.rb
index e8d7f5ff..34293f6d 100644
--- a/lib/spoom/deadcode/plugins/base.rb
+++ b/lib/spoom/deadcode/plugins/base.rb
@@ -277,17 +277,11 @@ def internal_on_define_module(symbol_def, definition)
         #   end
         # end
         # ~~~
-        sig { params(indexer: Indexer, send: Send).void }
-        def on_send(indexer, send)
+        sig { params(send: Send).void }
+        def on_send(send)
           # no-op
         end
 
-        # Do not override this method, use `on_send` instead.
-        sig { params(indexer: Indexer, send: Send).void }
-        def internal_on_send(indexer, send)
-          on_send(indexer, send)
-        end
-
         private
 
         # DSL support
diff --git a/lib/spoom/deadcode/plugins/graphql.rb b/lib/spoom/deadcode/plugins/graphql.rb
index dc57f877..f331da9f 100644
--- a/lib/spoom/deadcode/plugins/graphql.rb
+++ b/lib/spoom/deadcode/plugins/graphql.rb
@@ -24,8 +24,8 @@ class GraphQL < Base
           "unsubscribed",
         )
 
-        sig { override.params(indexer: Indexer, send: Send).void }
-        def on_send(indexer, send)
+        sig { override.params(send: Send).void }
+        def on_send(send)
           return unless send.recv.nil? && send.name == "field"
 
           arg = send.args.first
diff --git a/lib/spoom/deadcode/plugins/ruby.rb b/lib/spoom/deadcode/plugins/ruby.rb
index 0374ed39..4daa2edb 100644
--- a/lib/spoom/deadcode/plugins/ruby.rb
+++ b/lib/spoom/deadcode/plugins/ruby.rb
@@ -20,8 +20,8 @@ class Ruby < Base
           "to_s",
         )
 
-        sig { override.params(indexer: Indexer, send: Send).void }
-        def on_send(indexer, send)
+        sig { override.params(send: Send).void }
+        def on_send(send)
           case send.name
           when "const_defined?", "const_get", "const_source_location"
             reference_symbol_as_constant(send, T.must(send.args.first))
diff --git a/test/spoom/deadcode/plugins/base_test.rb b/test/spoom/deadcode/plugins/base_test.rb
index 7248c61e..a7e5896e 100644
--- a/test/spoom/deadcode/plugins/base_test.rb
+++ b/test/spoom/deadcode/plugins/base_test.rb
@@ -99,7 +99,7 @@ module Module2; end
 
         def test_on_send
           plugin = Class.new(Base) do
-            def on_send(indexer, send)
+            def on_send(send)
               return unless send.name == "dsl_method"
               return if send.args.empty?