diff --git a/src/keys/mod.rs b/src/keys/mod.rs
index 54992b66..0811ff2e 100644
--- a/src/keys/mod.rs
+++ b/src/keys/mod.rs
@@ -319,6 +319,7 @@ impl<Ctx: ScriptContext> ExtendedKey<Ctx> {
         match self {
             ExtendedKey::Private((mut xprv, _)) => {
                 xprv.network = network;
+                xprv.private_key.network = network;
                 Some(xprv)
             }
             ExtendedKey::Public(_) => None,