diff --git a/src/lib.rs b/src/lib.rs
index 65bf09e..76daeab 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -8,7 +8,7 @@ pub mod parser;
 pub mod maths;
 
 
-pub fn pretty(v: Vec<GaussianRational>) {
+pub fn pretty(v: &Vec<GaussianRational>) {
     v[0].print();
     for i in 1..v.len() {
         print!(" + ");
diff --git a/src/main.rs b/src/main.rs
index 4818ec9..08fbf2f 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -10,7 +10,7 @@ fn main() {
     println!("{:?}", equation);
     let is_equation = computorv1::maths::evaluator::is_equation(&equation);
     let evaluated = computorv1::maths::evaluator::evaluate(equation);
-    computorv1::pretty(evaluated);
+    computorv1::pretty(&evaluated);
     if is_equation {
         computorv1::maths::solver::solve(evaluated);
     }