diff --git a/protocols/identify/src/behaviour.rs b/protocols/identify/src/behaviour.rs
index 458b1f393d5..621f8f9a531 100644
--- a/protocols/identify/src/behaviour.rs
+++ b/protocols/identify/src/behaviour.rs
@@ -199,17 +199,10 @@ impl Config {
     /// Configures the size of the LRU cache, caching addresses of discovered peers.
     #[deprecated(since = "0.45.1", note = "Use `Config::with_cache_config` instead.")]
     pub fn with_cache_size(mut self, cache_size: usize) -> Self {
-        match NonZeroUsize::new(cache_size) {
-            Some(cache_size) => {
-                if let Some(cache_config) = &mut self.cache_config {
-                    cache_config.number_of_peers = cache_size;
-                } else {
-                    self.cache_config =
-                        Some(PeerAddressesConfig::default().with_number_of_peers(cache_size))
-                }
-            }
-            None => self.cache_config = None,
-        }
+        self.cache_config = NonZeroUsize::new(cache_size).map(|cache_size| {
+            let cache_config = self.cache_config.unwrap_or_default();
+            cache_config.with_number_of_peers(cache_size)
+        });
         self
     }
 
diff --git a/swarm/src/behaviour/peer_addresses.rs b/swarm/src/behaviour/peer_addresses.rs
index f689c1f5ab2..dd489124d11 100644
--- a/swarm/src/behaviour/peer_addresses.rs
+++ b/swarm/src/behaviour/peer_addresses.rs
@@ -12,10 +12,10 @@ use std::num::NonZeroUsize;
 /// Configuration of a [`PeerAddresses`] instance.
 pub struct PeerAddressesConfig {
     /// Capacity of the [`PeerAddresses`] cache.
-    pub number_of_peers: NonZeroUsize,
+    number_of_peers: NonZeroUsize,
 
     /// Maximum number of cached addresses per peer.
-    pub number_of_addresses_per_peer: NonZeroUsize,
+    number_of_addresses_per_peer: NonZeroUsize,
 }
 
 impl PeerAddressesConfig {