diff --git a/gems/smithy/spec/interfaces/client/client_spec.rb b/gems/smithy/spec/interfaces/client/client_spec.rb
index aa9fa447..dcd2ab47 100644
--- a/gems/smithy/spec/interfaces/client/client_spec.rb
+++ b/gems/smithy/spec/interfaces/client/client_spec.rb
@@ -19,12 +19,12 @@
     expect(subject).to respond_to(:get_city, :get_current_time, :get_forecast, :list_cities)
   end
 
-  # it 'builds input for operations' do
-  #   input = subject.send(:build_input, :get_city, { id: 1 })
-  #   expect(input).to be_a(Smithy::Client::Input)
-  # end
+  it 'builds input for operations' do
+    input = subject.send(:build_input, :get_city, { id: 1 })
+    expect(input).to be_a(Smithy::Client::Input)
+  end
 
-  # it 'can call operations' do
-  #   subject.get_city(id: 1)
-  # end
+  it 'can call operations' do
+    subject.get_city(id: 1)
+  end
 end