diff --git a/libconlang/src/ast.rs b/libconlang/src/ast.rs
index 5b3a5eb..21c2580 100644
--- a/libconlang/src/ast.rs
+++ b/libconlang/src/ast.rs
@@ -210,9 +210,7 @@ pub mod expression {
     /// # Syntax
     /// [`Expr`]` := `[`math::Operation`]
     #[derive(Clone, Debug)]
-    pub struct Expr {
-        pub ignore: math::Operation,
-    }
+    pub struct Expr (pub math::Operation);
 
     /// A [Primary] Expression is the expression with the highest precedence (i.e. the deepest
     /// derivation)
@@ -693,7 +691,7 @@ pub mod visitor {
         }
         impl<T: Visitor<Result<(), E>> + ?Sized, E> Walk<T, Result<(), E>> for Expr {
             fn walk(&self, visitor: &mut T) -> Result<(), E> {
-                visitor.visit_operation(&self.ignore)
+                visitor.visit_operation(&self.0)
             }
         }
         impl<T: Visitor<Result<(), E>> + ?Sized, E> Walk<T, Result<(), E>> for Group {
@@ -804,7 +802,7 @@ pub mod visitor {
 
         /// Visit an [Expression](Expr)
         fn visit_expr(&mut self, expr: &Expr) -> R {
-            self.visit_operation(&expr.ignore)
+            self.visit_operation(&expr.0)
         }
         // Block expression
         /// Visit a [Block] expression
diff --git a/libconlang/src/parser.rs b/libconlang/src/parser.rs
index 0e84b83..123f49b 100644
--- a/libconlang/src/parser.rs
+++ b/libconlang/src/parser.rs
@@ -229,13 +229,13 @@ impl Parser {
         Ok(token)
     }
     /// Consumes, without returning, a token with the given [Keyword], or returns an error.
-    /// 
+    ///
     /// Useful if you only want to check the existence of a [Keyword]
     fn keyword(&mut self, keyword: Keyword) -> PResult<&mut Self> {
         self.consume_type(Type::Keyword(keyword))
     }
     /// Consumes, without returning, a token with the given [Type], or returns an error.
-    /// 
+    ///
     /// Useful if you only want to check the existence of a token.
     fn consume_type(&mut self, t: Type) -> PResult<&mut Self> {
         self.matches(t)?;
@@ -381,7 +381,7 @@ impl Parser {
     /// Parses an [expression](expression::Expr)
     fn expr(&mut self) -> PResult<expression::Expr> {
         use expression::Expr;
-        Ok(Expr { ignore: self.assign()? })
+        Ok(Expr(self.assign()?))
     }
     /// Parses a [block expression](expression::Block)
     fn block(&mut self) -> PResult<expression::Block> {