diff --git a/lib/rspec/rails/example/controller_example_group.rb b/lib/rspec/rails/example/controller_example_group.rb
index 3150f3d46..636a194a1 100644
--- a/lib/rspec/rails/example/controller_example_group.rb
+++ b/lib/rspec/rails/example/controller_example_group.rb
@@ -176,6 +176,7 @@ def method_missing(method, *args, &block)
           super
         end
       end
+      ruby2_keywords :method_missing if respond_to?(:ruby2_keywords, true)
 
       included do
         subject { controller }
diff --git a/spec/rspec/rails/example/controller_example_group_spec.rb b/spec/rspec/rails/example/controller_example_group_spec.rb
index 56b53049d..50569e2a8 100644
--- a/spec/rspec/rails/example/controller_example_group_spec.rb
+++ b/spec/rspec/rails/example/controller_example_group_spec.rb
@@ -19,6 +19,13 @@ def group_for(klass)
       expect(group.included_modules).to include(RSpec::Rails::Matchers::RoutingMatchers)
     end
 
+    it "handles methods invoked via `method_missing` that use keywords" do
+      example = group.new
+      example.define_singleton_method(:has_val?) { |val:| val == 1 }
+      expect(example).to example.have_val(val: 1)
+      expect(example).to_not example.have_val(val: 2)
+    end
+
     context "with implicit subject" do
       it "uses the controller as the subject" do
         controller = double('controller')