diff --git a/apps/vault/Cargo.toml b/apps/vault/Cargo.toml
index f922afec4..7dfa531d3 100644
--- a/apps/vault/Cargo.toml
+++ b/apps/vault/Cargo.toml
@@ -73,6 +73,10 @@ hosted = []
 renode = []
 tts = []
 with_ctap1 = ["ctap-crypto/with_ctap1"]
+vendor_hid = []
+std = []
+fuzz = []
+debug_ctap = []
 autotest = []
 multireset = [] # allows credential reset more than once per boot
 vaultperf = [
diff --git a/apps/vault/libraries/crypto/Cargo.toml b/apps/vault/libraries/crypto/Cargo.toml
index 4d930b5b1..7f6d96504 100644
--- a/apps/vault/libraries/crypto/Cargo.toml
+++ b/apps/vault/libraries/crypto/Cargo.toml
@@ -42,3 +42,4 @@ rfc6979 = "0.2.0"
 
 [features]
 with_ctap1 = []
+derive_debug = []
diff --git a/apps/vault/src/storage.rs b/apps/vault/src/storage.rs
index f8b562aa3..f0e2f57e4 100644
--- a/apps/vault/src/storage.rs
+++ b/apps/vault/src/storage.rs
@@ -24,6 +24,7 @@ const VAULT_PASSWORD_REC_VERSION: u32 = 1;
 const VAULT_TOTP_REC_VERSION: u32 = 2;
 
 #[derive(Debug)]
+#[allow(dead_code)]
 pub enum Error {
     IoError(std::io::Error),
     TotpSerError(TOTPSerializationError),