diff --git a/lib/sdoc/rdoc_monkey_patches.rb b/lib/sdoc/rdoc_monkey_patches.rb
index b57486ec..e2269615 100644
--- a/lib/sdoc/rdoc_monkey_patches.rb
+++ b/lib/sdoc/rdoc_monkey_patches.rb
@@ -9,6 +9,13 @@ def path
 end)
 
 
+RDoc::AnyMethod.prepend(Module.new do
+  def params
+    super&.sub(/\A\(\s+/, "(")&.sub(/\s+\)\z/, ")")
+  end
+end)
+
+
 RDoc::Markup::ToHtmlCrossref.prepend(Module.new do
   def cross_reference(name, text = nil, code = true)
     if text
diff --git a/spec/rdoc_monkey_patches_spec.rb b/spec/rdoc_monkey_patches_spec.rb
index e112e2e9..6eed23db 100644
--- a/spec/rdoc_monkey_patches_spec.rb
+++ b/spec/rdoc_monkey_patches_spec.rb
@@ -12,6 +12,23 @@
     end
   end
 
+  describe RDoc::AnyMethod do
+    it "omits extra whitespace in #params" do
+      rdoc_method = rdoc_top_level_for(<<~RUBY).find_module_named("Foo").find_method("bar", false)
+        module Foo
+          def bar(
+            x,
+            y,
+            z
+          )
+          end
+        end
+      RUBY
+
+      _(rdoc_method.params).must_equal "(x, y, z)"
+    end
+  end
+
   describe RDoc::Markup::ToHtmlCrossref do
     it "prevents unintentional ref links" do
       description = rdoc_top_level_for(<<~RUBY).find_module_named("CoolApp").description