diff --git a/meson.build b/meson.build
index bed8c4e..772809e 100644
--- a/meson.build
+++ b/meson.build
@@ -435,8 +435,9 @@ if cc.has_header('execinfo.h')
   endif
 endif
 
+build_system = build_machine.system()
 gst_debug = get_option('gst_debug')
-if not gst_debug
+if not gst_debug and build_system != 'windows'
   add_project_arguments(['-Wno-unused'], language: 'c')
 endif