diff --git a/src/sframe.cpp b/src/sframe.cpp
index 7616bc1..c4510d4 100644
--- a/src/sframe.cpp
+++ b/src/sframe.cpp
@@ -71,7 +71,7 @@ KeyRecord::from_base_key(CipherSuite suite,
   auto key_size = cipher_key_size(suite);
   auto nonce_size = cipher_nonce_size(suite);
 
-  const auto empty_byte_string = owned_bytes<0>();
+  const auto empty_byte_string = owned_bytes<1>();
   const auto key_label = sframe_key_label(suite, key_id);
   const auto salt_label = sframe_salt_label(suite, key_id);