diff --git a/bitcoin/src/crypto/sighash.rs b/bitcoin/src/crypto/sighash.rs
index d5f67ed7..56b5ab1c 100644
--- a/bitcoin/src/crypto/sighash.rs
+++ b/bitcoin/src/crypto/sighash.rs
@@ -277,6 +277,10 @@ impl std::error::Error for Error {
     }
 }
 
+impl From<io::Error> for Error {
+    fn from(e: io::Error) -> Self { Error::Io(e.kind()) }
+}
+
 impl<'u, T> Prevouts<'u, T>
 where
     T: Borrow<TxOut>,
@@ -1085,10 +1089,6 @@ impl<R: BorrowMut<Transaction>> SighashCache<R> {
     }
 }
 
-impl From<io::Error> for Error {
-    fn from(e: io::Error) -> Self { Error::Io(e.kind()) }
-}
-
 /// The `Annex` struct is a slice wrapper enforcing first byte is `0x50`.
 #[derive(Clone, PartialEq, Eq, Hash, Debug)]
 pub struct Annex<'a>(&'a [u8]);