diff --git a/lib/ruby_lsp/requests/support/common.rb b/lib/ruby_lsp/requests/support/common.rb
index 85a5598a78..d0f8d48801 100644
--- a/lib/ruby_lsp/requests/support/common.rb
+++ b/lib/ruby_lsp/requests/support/common.rb
@@ -50,7 +50,7 @@ def visible?(node, range)
           params(
             node: Prism::Node,
             title: String,
-            command_name: String,
+            command_name: T.nilable(String),
             arguments: T.nilable(T::Array[T.untyped]),
             data: T.nilable(T::Hash[T.untyped, T.untyped]),
           ).returns(Interface::CodeLens)