diff --git a/src/de.rs b/src/de.rs
index 246e7245..1062f572 100644
--- a/src/de.rs
+++ b/src/de.rs
@@ -638,7 +638,7 @@ impl<T: Deserializable> Deserializable for Rc<T> {
     }
 }
 
-impl<T: Deserializable + Send + Share> Deserializable for Arc<T> {
+impl<T: Deserializable + Send + Sync> Deserializable for Arc<T> {
     #[inline]
     fn deserialize_token<
         D: Deserializer<E>,
diff --git a/src/ser.rs b/src/ser.rs
index 756d3b3b..fc17de89 100644
--- a/src/ser.rs
+++ b/src/ser.rs
@@ -181,7 +181,7 @@ impl_serializable_box!(Box<T>)
 impl_serializable_box!(Gc<T>)
 impl_serializable_box!(Rc<T>)
 
-impl<T: Serializable + Send + Share> Serializable for Arc<T> {
+impl<T: Serializable + Send + Sync> Serializable for Arc<T> {
     #[inline]
     fn serialize<S: Serializer<E>, E>(&self, s: &mut S) -> Result<(), E> {
         (**self).serialize(s)