diff --git a/spec/faraday/error_spec.rb b/spec/faraday/error_spec.rb
index 761a337b5..92bffe9a6 100644
--- a/spec/faraday/error_spec.rb
+++ b/spec/faraday/error_spec.rb
@@ -67,7 +67,9 @@
       end
 
       it 'allows backward-compatible class to be subclassed' do
-        expect { Class.new(Faraday::Error::ClientError) }.not_to raise_error
+        expect {
+          with_warn_squelching { Class.new(Faraday::Error::ClientError) }
+        }.not_to raise_error
       end
 
       it 'allows rescuing of a current error with a deprecated error' do