diff --git a/argus-parser/src/lib.rs b/argus-parser/src/lib.rs
index a25f84e..2121680 100644
--- a/argus-parser/src/lib.rs
+++ b/argus-parser/src/lib.rs
@@ -13,7 +13,7 @@ pub use parser::{parser, Expr, Interval};
 pub fn parse_str(src: &str) -> Result<argus_core::Expr, Vec<Rich<'_, String>>> {
     use chumsky::prelude::{Input, Parser};
 
-    let (tokens, lex_errors) = lexer().parse(src.clone()).into_output_errors();
+    let (tokens, lex_errors) = lexer().parse(src).into_output_errors();
 
     let (parsed, parse_errors) = if let Some(tokens) = &tokens {
         parser()
diff --git a/argus-parser/src/parser.rs b/argus-parser/src/parser.rs
index 3d15d9f..cbce9a8 100644
--- a/argus-parser/src/parser.rs
+++ b/argus-parser/src/parser.rs
@@ -292,8 +292,8 @@ pub fn parser<'tokens, 'src: 'tokens>(
         }
         .labelled("boolean literal");
 
-        let var = select! { Token::Ident(ident) => Expr::Var{ name: ident.clone(), kind: Type::default()} }
-            .labelled("variable");
+        let var =
+            select! { Token::Ident(ident) => Expr::Var{ name: ident, kind: Type::default()} }.labelled("variable");
 
         // Relational ops (<, <=, >, >=, ==, !=) have equal precedence
         let relational_op = {