diff --git a/src/os/win32/ngx_win32_config.h b/src/os/win32/ngx_win32_config.h
index 96156870d..dcd45fb25 100644
--- a/src/os/win32/ngx_win32_config.h
+++ b/src/os/win32/ngx_win32_config.h
@@ -80,8 +80,6 @@ typedef long  time_t;
 
 #pragma warning(default:4201)
 
-/* disable some "-W4" level warnings */
-
 /* 'type cast': from function pointer to data pointer */
 #pragma warning(disable:4054)