--- a/dom/plugins/test/testplugin/nptest.cpp
+++ b/dom/plugins/test/testplugin/nptest.cpp
@@ -2733,17 +2733,17 @@ convertPointY(NPObject* npobj, const NPV
 
   DOUBLE_TO_NPVARIANT(resultY, *result);
   return true;
 }
 
 static bool
 streamTest(NPObject* npobj, const NPVariant* args, uint32_t argCount, NPVariant* result)
 {
-  // .streamTest(url, doPost, doNull, writeCallback, notifyCallback, redirectCallback, allowRedirects)
+  // .streamTest(url, doPost, postData, writeCallback, notifyCallback, redirectCallback, allowRedirects)
   if (7 != argCount)
     return false;
 
   NPP npp = static_cast<TestNPObject*>(npobj)->npp;
 
   if (!NPVARIANT_IS_STRING(args[0]))
     return false;
   NPString url = NPVARIANT_TO_STRING(args[0]);