diff --git a/schala-lang/language/src/ast.rs b/schala-lang/language/src/ast.rs
index ff813e0..bf77ef1 100644
--- a/schala-lang/language/src/ast.rs
+++ b/schala-lang/language/src/ast.rs
@@ -83,8 +83,11 @@ pub struct AST {
   pub statements: Vec<Meta<Statement>>
 }
 
-#[derive(Debug, PartialEq, Clone)]
+#[derive(Derivative, Debug, Clone)]
+#[derivative(PartialEq)]
 pub struct Statement {
+  #[derivative(PartialEq="ignore")]
+  pub id: ItemId,
   pub kind: StatementKind,
 }
 
diff --git a/schala-lang/language/src/parsing.rs b/schala-lang/language/src/parsing.rs
index d364395..b1b7ec8 100644
--- a/schala-lang/language/src/parsing.rs
+++ b/schala-lang/language/src/parsing.rs
@@ -351,7 +351,7 @@ impl Parser {
       Keyword(Impl) => self.impl_declaration().map(|decl| StatementKind::Declaration(decl)),
       _ => self.expression().map(|expr| { StatementKind::Expression(expr.into()) } ),
     }?;
-    Ok(Statement { kind })
+    Ok(Statement { kind, id: self.id_store.fresh() })
   }
 
   #[recursive_descent_method]
@@ -1063,7 +1063,7 @@ impl Parser {
       LCurlyBrace => self.block(),
       _ => {
         let expr = self.expression()?;
-        let s = Statement { kind: StatementKind::Expression(expr.into()) };
+        let s = Statement { id: self.id_store.fresh(), kind: StatementKind::Expression(expr.into()) };
         Ok(vec![Meta::new(s)])
       }
     }
diff --git a/schala-lang/language/src/parsing/test.rs b/schala-lang/language/src/parsing/test.rs
index 5f720e7..b0bf34e 100644
--- a/schala-lang/language/src/parsing/test.rs
+++ b/schala-lang/language/src/parsing/test.rs
@@ -42,7 +42,7 @@ macro_rules! tys {
 
 macro_rules! decl {
   ($expr_type:expr) => {
-    Statement { kind: StatementKind::Declaration($expr_type) }
+    Statement { id: ItemIdStore::new_id(), kind: StatementKind::Declaration($expr_type) }
   };
 }
 
@@ -70,10 +70,10 @@ macro_rules! prefexp {
   ($op:expr, $lhs:expr) => { PrefixExp(PrefixOp::from_str($op).unwrap(), bx!(Expression::new($lhs).into())) }
 }
 macro_rules! exst {
-  ($expr_type:expr) => { Meta::new(Statement { kind: StatementKind::Expression(Expression::new($expr_type).into())}) };
-  ($expr_type:expr, $type_anno:expr) => { Meta::new(Statement { kind: StatementKind::Expression(Expression::with_anno($expr_type, $type_anno).into())}) };
+  ($expr_type:expr) => { Meta::new(Statement { id: ItemIdStore::new_id(), kind: StatementKind::Expression(Expression::new($expr_type).into())}) };
+  ($expr_type:expr, $type_anno:expr) => { Meta::new(Statement { id: ItemIdStore::new_id(), kind: StatementKind::Expression(Expression::with_anno($expr_type, $type_anno).into())}) };
   ($op:expr, $lhs:expr, $rhs:expr) => { Meta::new(
-    Statement { kind: StatementKind::Expression(ex!(binexp!($op, $lhs, $rhs)))}
+    Statement { id: ItemIdStore::new_id(), ,kind: StatementKind::Expression(ex!(binexp!($op, $lhs, $rhs)))}
   )};
   (s $statement_text:expr) => {
     {