diff --git a/extras/gudev/gudevprivate.h b/extras/gudev/gudevprivate.h
index 64b008fb83..4fd498797a 100644
--- a/extras/gudev/gudevprivate.h
+++ b/extras/gudev/gudevprivate.h
@@ -27,7 +27,6 @@
 
 #include <gudev/gudevtypes.h>
 
-#define LIBUDEV_I_KNOW_THE_API_IS_SUBJECT_TO_CHANGE 1
 #include <libudev.h>
 
 G_BEGIN_DECLS