diff --git a/src/osdep/meson.build b/src/osdep/meson.build
index 5b7087da..c3e6ea64 100644
--- a/src/osdep/meson.build
+++ b/src/osdep/meson.build
@@ -9,7 +9,7 @@ endif
 if conf_data.get('CONFIG_OS_RISCOS')
 	subdir('riscos')
 endif
-if conf_data.get('CONFIG_OS_UNIX') == 1
+if conf_data.get('CONFIG_OS_UNIX')
 	subdir('unix')
 endif
 if conf_data.get('CONFIG_OS_WIN32')