diff --git a/lib/internal/modules/run_main.js b/lib/internal/modules/run_main.js
index 080e56510fbe26..0d8e24cb47a216 100644
--- a/lib/internal/modules/run_main.js
+++ b/lib/internal/modules/run_main.js
@@ -50,6 +50,7 @@ function shouldUseESMLoader(mainPath) {
 
   const { readPackageScope } = require('internal/modules/cjs/loader');
   const pkg = readPackageScope(mainPath);
+  // No need to guard `pkg` as it can only be an object or `false`.
   return pkg.data?.type === 'module' || getOptionValue('--experimental-type') === 'module';
 }
 
diff --git a/src/node_options.h b/src/node_options.h
index f8ffae0aa5015a..f313e7c12b82f2 100644
--- a/src/node_options.h
+++ b/src/node_options.h
@@ -116,8 +116,8 @@ class EnvironmentOptions : public Options {
   bool experimental_https_modules = false;
   bool experimental_wasm_modules = false;
   bool experimental_import_meta_resolve = false;
-  std::string input_type;
-  std::string type;
+  std::string input_type;  // Value of --input-type
+  std::string type;        // Value of --experimental-type
   std::string experimental_policy;
   std::string experimental_policy_integrity;
   bool has_policy_integrity_string = false;