diff --git a/src/crypto-secret/lib.cr b/src/crypto-secret/lib.cr
index ce8fda4..106236a 100644
--- a/src/crypto-secret/lib.cr
+++ b/src/crypto-secret/lib.cr
@@ -1,3 +1,6 @@
+module Crypto
+end
+
 require "crypto/subtle"
 
 lib LibC