diff --git a/cli/src/main.rs b/cli/src/main.rs
index 32802153..bdd51249 100644
--- a/cli/src/main.rs
+++ b/cli/src/main.rs
@@ -7,7 +7,11 @@ use std::{fs, io};
 mod settings;
 
 fn create_or_open_then_write<T: AsRef<[u8]>>(path: &Path, content: &T) -> Result<(), io::Error> {
-    let mut file = fs::OpenOptions::new().create(true).write(true).open(path)?;
+    let mut file = fs::OpenOptions::new()
+        .create(true)
+        .truncate(true)
+        .write(true)
+        .open(path)?;
     file.write_all(content.as_ref())
 }
 
diff --git a/frontends/src/circom/mod.rs b/frontends/src/circom/mod.rs
index 88a9da5b..313a5602 100644
--- a/frontends/src/circom/mod.rs
+++ b/frontends/src/circom/mod.rs
@@ -8,8 +8,8 @@ use ark_relations::r1cs::{ConstraintSynthesizer, ConstraintSystemRef, SynthesisE
 use ark_std::fmt::Debug;
 use folding_schemes::{frontend::FCircuit, utils::PathOrBin, Error};
 use num_bigint::BigInt;
+use std::fmt;
 use std::rc::Rc;
-use std::{fmt, usize};
 
 pub mod utils;
 use utils::CircomWrapper;