diff --git a/include/openssl/err.h b/include/openssl/err.h
index bf1cf47..0a90b0e 100644
--- a/include/openssl/err.h
+++ b/include/openssl/err.h
@@ -430,8 +430,8 @@
   ERR_LIB_HMAC,
   ERR_LIB_DIGEST,
   ERR_LIB_CIPHER,
-  ERR_LIB_USER,
   ERR_LIB_HKDF,
+  ERR_LIB_USER,
   ERR_NUM_LIBS
 };