diff --git a/rswag-specs/lib/rswag/specs/request_factory.rb b/rswag-specs/lib/rswag/specs/request_factory.rb
index f7b9fce..eb13b2d 100644
--- a/rswag-specs/lib/rswag/specs/request_factory.rb
+++ b/rswag-specs/lib/rswag/specs/request_factory.rb
@@ -216,7 +216,7 @@ module Rswag
 
       def message
         <<~MSG
-          Missing parameter #{body_param}
+          Missing parameter '#{body_param}'
 
           Please check your spec. It looks like you defined a body parameter,
           but did not declare usage via let. Try adding:
diff --git a/rswag-specs/spec/rswag/specs/request_factory_spec.rb b/rswag-specs/spec/rswag/specs/request_factory_spec.rb
index a9faef2..a26f694 100644
--- a/rswag-specs/spec/rswag/specs/request_factory_spec.rb
+++ b/rswag-specs/spec/rswag/specs/request_factory_spec.rb
@@ -171,7 +171,7 @@ module Rswag
             it 'uses the referenced metadata to build the request' do
               expect do
                 request[:payload]
-              end.to raise_error(Rswag::Specs::MissingParameterError, /Missing parameter comment/)
+              end.to raise_error(Rswag::Specs::MissingParameterError, /Missing parameter 'comment'/)
             end
           end