diff --git a/substrate/primitives/application-crypto/src/lib.rs b/substrate/primitives/application-crypto/src/lib.rs
index a02b1003b2..dd8b02fc1d 100644
--- a/substrate/primitives/application-crypto/src/lib.rs
+++ b/substrate/primitives/application-crypto/src/lib.rs
@@ -141,7 +141,7 @@ macro_rules! app_crypto_pair {
 				<$pair>::verify_weak(sig, message, pubkey)
 			}
 			fn public(&self) -> Self::Public { Public(self.0.public()) }
-			fn to_raw_vec(&self) -> Vec<u8> { self.0.to_raw_vec() }
+			fn to_raw_vec(&self) -> $crate::Vec<u8> { self.0.to_raw_vec() }
 		}
 
 		impl $crate::AppKey for Pair {
diff --git a/substrate/primitives/application-crypto/src/traits.rs b/substrate/primitives/application-crypto/src/traits.rs
index 0c99d49ce3..0575d2ba06 100644
--- a/substrate/primitives/application-crypto/src/traits.rs
+++ b/substrate/primitives/application-crypto/src/traits.rs
@@ -41,9 +41,9 @@ pub trait AppKey: 'static + Send + Sync + Sized + CryptoType + Clone {
 }
 
 /// Type which implements Hash in std, not when no-std (std variant).
-#[cfg(feature = "std")]
+#[cfg(any(feature = "std", feature = "full_crypto"))]
 pub trait MaybeHash: rstd::hash::Hash {}
-#[cfg(feature = "std")]
+#[cfg(any(feature = "std", feature = "full_crypto"))]
 impl<T: rstd::hash::Hash> MaybeHash for T {}
 
 /// Type which implements Hash in std, not when no-std (no-std variant).