diff --git a/c_src/enacl_nif.c b/c_src/enacl_nif.c
index 8104976..d4bd73c 100644
--- a/c_src/enacl_nif.c
+++ b/c_src/enacl_nif.c
@@ -8,10 +8,10 @@
 #include "enacl_ext.h"
 #include "generichash.h"
 #include "hash.h"
+#include "kdf.h"
 #include "kx.h"
 #include "public.h"
 #include "pwhash.h"
-#include "kdf.h"
 #include "randombytes.h"
 #include "secret.h"
 #include "secretstream.h"