diff --git a/lib/rspec/rails/example/system_example_group.rb b/lib/rspec/rails/example/system_example_group.rb
index 9ea1c25e93..691b1f0c28 100644
--- a/lib/rspec/rails/example/system_example_group.rb
+++ b/lib/rspec/rails/example/system_example_group.rb
@@ -81,7 +81,7 @@ def app
 
         attr_reader :driver
 
-        if ::Rails.version.to_f == 5.1
+        if ActionDispatch::SystemTesting::Server.respond_to?(:silence_puma=)
           ActionDispatch::SystemTesting::Server.silence_puma = true
         end