diff --git a/schala-lang/language/src/eval.rs b/schala-lang/language/src/eval.rs
index cb5fcca..8116400 100644
--- a/schala-lang/language/src/eval.rs
+++ b/schala-lang/language/src/eval.rs
@@ -70,12 +70,12 @@ fn paren_wrapped_vec(terms: impl Iterator<Item=String>) -> String {
 
 
 impl Node {
-  fn to_repl(&self) -> String {
+  fn to_repl(&self, symbol_table: &SymbolTable) -> String {
     match self {
-      Node::Expr(e) => e.to_repl(),
+      Node::Expr(e) => e.to_repl(symbol_table),
       Node::PrimObject { name, items, .. } if items.len() == 0 => format!("{}", name),
-      Node::PrimObject { name, items, .. } => format!("{}{}", name, paren_wrapped_vec(items.iter().map(|x| x.to_repl()))),
-      Node::PrimTuple { items } => format!("{}", paren_wrapped_vec(items.iter().map(|x| x.to_repl()))),
+      Node::PrimObject { name, items, .. } => format!("{}{}", name, paren_wrapped_vec(items.iter().map(|x| x.to_repl(symbol_table)))),
+      Node::PrimTuple { items } => format!("{}", paren_wrapped_vec(items.iter().map(|x| x.to_repl(symbol_table)))),
     }
   }
   fn is_true(&self) -> bool {
@@ -100,10 +100,12 @@ impl Expr {
   fn to_node(self) -> Node {
     Node::Expr(self)
   }
-  fn to_repl(&self) -> String {
+  fn to_repl(&self, symbol_table: &SymbolTable) -> String {
     use self::Lit::*;
     use self::Func::*;
 
+    let _ = symbol_table;
+
     match self {
       Expr::Lit(ref l) => match l {
         Nat(n) => format!("{}", n),
@@ -120,7 +122,7 @@ impl Expr {
       Expr::Constructor { type_name, arity, .. } => {
         format!("<constructor for `{}` arity {}>", type_name, arity)
       },
-      Expr::Tuple(exprs) => paren_wrapped_vec(exprs.iter().map(|x| x.to_repl())),
+      Expr::Tuple(exprs) => paren_wrapped_vec(exprs.iter().map(|x| x.to_repl(symbol_table))),
       _ => format!("{:?}", self),
     }
   }
@@ -154,7 +156,10 @@ impl<'a> State<'a> {
 
     for statement in ast.0 {
       match self.statement(statement) {
-        Ok(Some(ref output)) if repl => acc.push(Ok(output.to_repl())),
+        Ok(Some(ref output)) if repl => {
+          let ref symbol_table = self.symbol_table_handle.borrow();
+          acc.push(Ok(output.to_repl(symbol_table)))
+        },
         Ok(_) => (),
         Err(error) => {
           acc.push(Err(format!("Runtime error: {}", error)));
@@ -338,11 +343,13 @@ impl<'a> State<'a> {
 
       /* builtin functions */
       (IOPrint, &[ref anything]) => {
-        print!("{}", anything.to_repl());
+        let ref symbol_table = self.symbol_table_handle.borrow();
+        print!("{}", anything.to_repl(symbol_table));
         Expr::Unit
       },
       (IOPrintLn, &[ref anything]) => {
-        println!("{}", anything.to_repl());
+        let ref symbol_table = self.symbol_table_handle.borrow();
+        println!("{}", anything.to_repl(symbol_table));
         Expr::Unit
       },
       (IOGetLine, &[]) => {