diff --git a/src/node.cc b/src/node.cc
index 73ed460f361b44..180afa25f78f3e 100644
--- a/src/node.cc
+++ b/src/node.cc
@@ -3317,6 +3317,7 @@ void SetupProcessObject(Environment* env,
     READONLY_PROPERTY(process, "_forceRepl", True(env->isolate()));
   }
 
+  // -r, --require
   if (preload_module_count) {
     CHECK(preload_modules);
     Local<Array> array = Array::New(env->isolate());
@@ -3339,10 +3340,12 @@ void SetupProcessObject(Environment* env,
     READONLY_PROPERTY(process, "noDeprecation", True(env->isolate()));
   }
 
+  // --no-warnings
   if (no_process_warnings) {
     READONLY_PROPERTY(process, "noProcessWarnings", True(env->isolate()));
   }
 
+  // --trace-warnings
   if (trace_warnings) {
     READONLY_PROPERTY(process, "traceProcessWarnings", True(env->isolate()));
   }