diff --git a/agb-hashmap/src/serde.rs b/agb-hashmap/src/serde.rs
index e014120f..7b081de4 100644
--- a/agb-hashmap/src/serde.rs
+++ b/agb-hashmap/src/serde.rs
@@ -7,70 +7,74 @@ use serde::{
 
 use crate::{ClonableAllocator, HashMap};
 
-impl<K: Serialize, V: Serialize, ALLOCATOR: ClonableAllocator> Serialize
-    for HashMap<K, V, ALLOCATOR>
-{
-    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
-    where
-        S: serde::Serializer,
-    {
-        let mut map = serializer.serialize_map(Some(self.len()))?;
+mod hashmap {
+    use super::*;
 
-        for (key, value) in self {
-            map.serialize_entry(key, value)?;
+    impl<K: Serialize, V: Serialize, ALLOCATOR: ClonableAllocator> Serialize
+        for HashMap<K, V, ALLOCATOR>
+    {
+        fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where
+            S: serde::Serializer,
+        {
+            let mut map = serializer.serialize_map(Some(self.len()))?;
+
+            for (key, value) in self {
+                map.serialize_entry(key, value)?;
+            }
+
+            map.end()
+        }
+    }
+
+    impl<'de, K, V> Deserialize<'de> for HashMap<K, V>
+    where
+        K: Deserialize<'de> + Hash + Eq,
+        V: Deserialize<'de>,
+    {
+        fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+        where
+            D: serde::Deserializer<'de>,
+        {
+            deserializer.deserialize_map(HashMapVisitor::new())
+        }
+    }
+
+    #[derive(Default)]
+    struct HashMapVisitor<K, V> {
+        _marker: PhantomData<fn() -> HashMap<K, V>>,
+    }
+
+    impl<K, V> HashMapVisitor<K, V> {
+        fn new() -> Self {
+            Self {
+                _marker: PhantomData,
+            }
+        }
+    }
+
+    impl<'de, K, V> Visitor<'de> for HashMapVisitor<K, V>
+    where
+        K: Deserialize<'de> + Hash + Eq,
+        V: Deserialize<'de>,
+    {
+        type Value = HashMap<K, V>;
+
+        fn expecting(&self, formatter: &mut alloc::fmt::Formatter) -> alloc::fmt::Result {
+            formatter.write_str("an agb::HashMap")
         }
 
-        map.end()
-    }
-}
+        fn visit_map<M>(self, mut access: M) -> Result<Self::Value, M::Error>
+        where
+            M: MapAccess<'de>,
+        {
+            let mut map = HashMap::with_capacity(access.size_hint().unwrap_or(8));
 
-impl<'de, K, V> Deserialize<'de> for HashMap<K, V>
-where
-    K: Deserialize<'de> + Hash + Eq,
-    V: Deserialize<'de>,
-{
-    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
-    where
-        D: serde::Deserializer<'de>,
-    {
-        deserializer.deserialize_map(HashMapVisitor::new())
-    }
-}
+            while let Some((key, value)) = access.next_entry()? {
+                map.insert(key, value);
+            }
 
-#[derive(Default)]
-struct HashMapVisitor<K, V> {
-    _marker: PhantomData<fn() -> HashMap<K, V>>,
-}
-
-impl<K, V> HashMapVisitor<K, V> {
-    fn new() -> Self {
-        Self {
-            _marker: PhantomData,
+            Ok(map)
         }
     }
 }
-
-impl<'de, K, V> Visitor<'de> for HashMapVisitor<K, V>
-where
-    K: Deserialize<'de> + Hash + Eq,
-    V: Deserialize<'de>,
-{
-    type Value = HashMap<K, V>;
-
-    fn expecting(&self, formatter: &mut alloc::fmt::Formatter) -> alloc::fmt::Result {
-        formatter.write_str("an agb::HashMap")
-    }
-
-    fn visit_map<M>(self, mut access: M) -> Result<Self::Value, M::Error>
-    where
-        M: MapAccess<'de>,
-    {
-        let mut map = HashMap::with_capacity(access.size_hint().unwrap_or(8));
-
-        while let Some((key, value)) = access.next_entry()? {
-            map.insert(key, value);
-        }
-
-        Ok(map)
-    }
-}