diff --git a/src/processor.rs b/src/processor.rs
index 9f5a2bb..02339e8 100644
--- a/src/processor.rs
+++ b/src/processor.rs
@@ -12,7 +12,7 @@ pub(crate) trait Processor {
 pub(crate) struct Identity;
 
 impl Processor for Identity {
-    fn path(&self, mut path: PathBuf) -> PathBuf {
+    fn path(&self, path: PathBuf) -> PathBuf {
         path
     }