diff --git a/src/audio/mod.rs b/src/audio/mod.rs
index 7d7cdba3..25826cad 100644
--- a/src/audio/mod.rs
+++ b/src/audio/mod.rs
@@ -108,7 +108,7 @@ impl Audio {
 
     fn play_from_file(
         &self,
-        mut file: impl Read + Seek + Send + Sync + 'static,
+        file: impl Read + Seek + Send + Sync + 'static,
         is_midi: bool,
         volume: u8,
         pitch: u8,
diff --git a/src/filesystem/project.rs b/src/filesystem/project.rs
index 18910138..74a7eaef 100644
--- a/src/filesystem/project.rs
+++ b/src/filesystem/project.rs
@@ -347,7 +347,7 @@ impl FileSystem {
             .map(|entry| dir.open_file(entry.path, OpenFlags::Read | OpenFlags::Write))
             .transpose()
             .map_err(|e| e.to_string())?
-            .map(|file| archiver::FileSystem::new(file))
+            .map(archiver::FileSystem::new)
             .transpose()
             .map_err(|e| e.to_string())?;
 
@@ -426,7 +426,7 @@ impl FileSystem {
             .map(|entry| dir.open_file(entry.path, OpenFlags::Read | OpenFlags::Write))
             .transpose()
             .map_err(|e| e.to_string())?
-            .map(|file| archiver::FileSystem::new(file))
+            .map(archiver::FileSystem::new)
             .transpose()
             .map_err(|e| e.to_string())?;