diff --git a/src/lib.rs b/src/lib.rs
index fb5cf20..3381309 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -285,8 +285,8 @@ impl Chain {
         Self { certs }
     }
 
-    pub fn fixed_from(certs: Vec<Certificate>) -> Result<Chain, String> {
-        let mut certs = certs.iter().collect::<Vec<_>>();
+    pub fn create_fixed(certs: &[Certificate]) -> Result<Chain, String> {
+        let mut certs = certs.to_vec();
         certs.sort_by(|cert1, cert2| {
             if cert1.subject_key_id() == cert2.authority_key_id() {
                 Ordering::Greater
@@ -294,7 +294,7 @@ impl Chain {
                 Ordering::Less
             }
         });
-        let chain = Chain::from(certs.iter().unique().map(|&c| c.clone()).collect::<Vec<_>>());
+        let chain = Chain::from(certs.iter().unique().cloned().collect::<Vec<_>>());
         if !chain.is_valid() {
             return Err("Cannot merge files to valid chain - giving up!".to_string());
         }
diff --git a/ui/src/main.rs b/ui/src/main.rs
index 88f9b06..a634cbd 100644
--- a/ui/src/main.rs
+++ b/ui/src/main.rs
@@ -104,7 +104,7 @@ impl Ui {
                     _ => None,
                 };
                 self.fixed_chain = match &self.chain {
-                    Some(chain) => match Chain::fixed_from(chain.certs().to_vec()) {
+                    Some(chain) => match Chain::create_fixed(chain.certs()) {
                         Ok(chain) => Some(chain),
                         _ => None,
                     },
@@ -130,7 +130,7 @@ impl Ui {
                             _ => None,
                         };
                         self.fixed_chain = match &self.chain {
-                            Some(chain) => match Chain::fixed_from(chain.certs().to_vec()) {
+                            Some(chain) => match Chain::create_fixed(chain.certs()) {
                                 Ok(chain) => Some(chain),
                                 _ => None,
                             },
@@ -156,7 +156,7 @@ impl Ui {
                             _ => None,
                         };
                         self.fixed_chain = match &self.chain {
-                            Some(chain) => match Chain::fixed_from(chain.certs().to_vec()) {
+                            Some(chain) => match Chain::create_fixed(chain.certs()) {
                                 Ok(chain) => Some(chain),
                                 _ => None,
                             },