diff --git a/src/win32_window.c b/src/win32_window.c
index 2c3914d6..5bbd0409 100644
--- a/src/win32_window.c
+++ b/src/win32_window.c
@@ -255,6 +255,8 @@ static LRESULT CALLBACK windowProc(HWND hWnd, UINT uMsg,
     _GLFWwindow* window = (_GLFWwindow*) GetWindowLongPtrW(hWnd, 0);
     if (!window)
     {
+        // This is the message handling for the hidden helper window
+
         switch (uMsg)
         {
             case WM_NCCREATE: