diff --git a/src/tools.cpp b/src/tools.cpp
index 5cfa59c..2c8300a 100644
--- a/src/tools.cpp
+++ b/src/tools.cpp
@@ -1048,7 +1048,7 @@ decrypt(const std::string &ciphertext,
     }
 
     crypto::chacha_key key;
-    crypto::generate_chacha_key(&skey, sizeof(skey), key);
+    crypto::generate_chacha_key(&skey, sizeof(skey), key, 1);
 
     const crypto::chacha_iv &iv = *(const crypto::chacha_iv*)&ciphertext[0];