diff --git a/libs/fast-nat/src/cpnat.rs b/libs/fast-nat/src/cpnat.rs
index 86f5ee4..8496ed7 100644
--- a/libs/fast-nat/src/cpnat.rs
+++ b/libs/fast-nat/src/cpnat.rs
@@ -154,9 +154,8 @@ impl CrossProtocolNetworkAddressTableWithIpv4Pool {
         let new_address = self
             .pool
             .iter()
-            .map(|prefix| prefix.hosts())
-            .flatten()
-            .find(|addr| !self.table.get_ipv6(addr).is_some())
+            .flat_map(Ipv4Net::hosts)
+            .find(|addr| self.table.get_ipv6(addr).is_none())
             .ok_or(Error::Ipv4PoolExhausted)?;
 
         // Insert the new mapping
diff --git a/src/protomask.rs b/src/protomask.rs
index a08fdad..de05a15 100644
--- a/src/protomask.rs
+++ b/src/protomask.rs
@@ -171,7 +171,7 @@ pub async fn main() {
                 Some(new_destination) => Ok(translate_ipv4_to_ipv6(
                     packet,
                     unsafe { embed_ipv4_addr_unchecked(*source, args.translation_prefix) },
-                    new_destination.into(),
+                    new_destination,
                 )
                 .map(Some)?),
                 None => {
@@ -183,7 +183,7 @@ pub async fn main() {
             |packet, source, dest| {
                 Ok(translate_ipv6_to_ipv4(
                     packet,
-                    addr_table.borrow_mut().get_or_create_ipv4(source)?.into(),
+                    addr_table.borrow_mut().get_or_create_ipv4(source)?,
                     unsafe {
                         extract_ipv4_addr_unchecked(*dest, args.translation_prefix.prefix_len())
                     },