diff --git a/l4/z1/rsa-rs/src/main.rs b/l4/z1/rsa-rs/src/main.rs
index 0ce0f88..f92d263 100644
--- a/l4/z1/rsa-rs/src/main.rs
+++ b/l4/z1/rsa-rs/src/main.rs
@@ -60,10 +60,8 @@ fn euclid(a: &BigUint, b: &BigUint) -> BigUint {
 
 fn find_e(phi: &BigUint) -> BigUint {
     let mut e = thread_rng().gen_biguint_range(&1u32.into(), phi);
-    let mut g = gcd(&e, phi);
-    while g != 1u32.into() {
+    while gcd(&e, phi) != 1u32.into() {
         e = thread_rng().gen_biguint_range(&1u32.into(), phi);
-        g = gcd(&e, phi);
     }
 
     e