Revert "remove &mut reference from deserialize implementation"

This reverts commit 12f7778be6bd94d59d4f414d3a22c1992caec320.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib.rs b/src/lib.rs
index 52054de..9a9e8a3 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -42,7 +42,7 @@ pub fn derive_deserialize(item: TokenStream) -> TokenStream {
 
     quote!(
         impl Deserialize for #name {
-            fn deserialize<R: std::io::Read>(&mut self, r: R) -> Result<()> {
+            fn deserialize<R: std::io::Read>(&mut self, r: &mut R) -> Result<()> {
                 #(#deserializers) *
 
                 Ok(())