diff --git a/src/compiling/lexing/lexer.rs b/src/compiling/lexing/lexer.rs
index e39075f..8836ef9 100644
--- a/src/compiling/lexing/lexer.rs
+++ b/src/compiling/lexing/lexer.rs
@@ -32,7 +32,7 @@ pub struct Lexer {
     pub scoping_mode: ScopingMode,
 }
 
-#[cfg_attr(feature = "serde", derive(Serialize))]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 struct LexState<'a> {
     word: String,
     is_indenting: bool,
diff --git a/src/compiling/lexing/reader.rs b/src/compiling/lexing/reader.rs
index 32d5afd..438fae9 100644
--- a/src/compiling/lexing/reader.rs
+++ b/src/compiling/lexing/reader.rs
@@ -9,7 +9,7 @@ pub enum ReadMode {
     Future
 }
 
-#[cfg_attr(feature = "serde", derive(Serialize))]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub struct Reader<'a> {
     pub code: &'a String,
     pub row: usize,