diff --git a/rslib/src/import_export/package/colpkg/import.rs b/rslib/src/import_export/package/colpkg/import.rs
index 35fbc6c41..8adb48636 100644
--- a/rslib/src/import_export/package/colpkg/import.rs
+++ b/rslib/src/import_export/package/colpkg/import.rs
@@ -152,8 +152,9 @@ fn copy_collection(
     Ok(())
 }
 
-#[allow(clippy::type_complexity)]
-struct MediaComparer<'a>(Option<Box<dyn FnMut(&str) -> Result<Option<Sha1Hash>> + 'a>>);
+type GetChecksumFn<'a> = dyn FnMut(&str) -> Result<Option<Sha1Hash>> + 'a;
+
+struct MediaComparer<'a>(Option<Box<GetChecksumFn<'a>>>);
 
 impl<'a> MediaComparer<'a> {
     fn new(