diff --git a/wxPython/src/helpers.cpp b/wxPython/src/helpers.cpp
index 081932b248..fc8a824bc7 100644
--- a/wxPython/src/helpers.cpp
+++ b/wxPython/src/helpers.cpp
@@ -386,6 +386,7 @@ void __wxPreStart(PyObject* moduleDict)
     wxPyTMutex = new wxMutex;
 #endif
 
+    // Ensure that the build options in the DLL (or whatever) match this build
     wxApp::CheckBuildOptions(wxBuildOptions());
 
     wxPyAssertionError = PyErr_NewException("wxPython.wxc.wxPyAssertionError",