diff --git a/asyncgit/src/lib.rs b/asyncgit/src/lib.rs
index 1ed4a9cc..bfab69b7 100644
--- a/asyncgit/src/lib.rs
+++ b/asyncgit/src/lib.rs
@@ -5,13 +5,11 @@
 #![deny(unused_imports)]
 #![deny(unused_must_use)]
 #![deny(dead_code)]
-#![deny(clippy::all)]
+#![deny(clippy::all, clippy::perf, clippy::nursery, clippy::pedantic)]
+#![deny(clippy::filetype_is_file)]
 #![deny(clippy::cargo)]
-#![deny(clippy::pedantic)]
-#![deny(clippy::nursery)]
 #![deny(clippy::unwrap_used)]
 #![deny(clippy::panic)]
-#![deny(clippy::perf)]
 #![deny(clippy::match_like_matches_macro)]
 #![deny(clippy::needless_update)]
 #![allow(clippy::module_name_repetitions)]
diff --git a/asyncgit/src/sync/diff.rs b/asyncgit/src/sync/diff.rs
index d7558912..1fbbd937 100644
--- a/asyncgit/src/sync/diff.rs
+++ b/asyncgit/src/sync/diff.rs
@@ -342,7 +342,7 @@ fn new_file_content(path: &Path) -> Option<Vec<u8>> {
                     path.to_str()?.to_string().as_bytes().into(),
                 );
             }
-        } else if meta.file_type().is_file() {
+        } else if !meta.file_type().is_dir() {
             if let Ok(content) = fs::read(path) {
                 return Some(content);
             }
diff --git a/src/main.rs b/src/main.rs
index d63eb4b1..f326bc41 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -2,11 +2,9 @@
 #![deny(unused_imports)]
 #![deny(unused_must_use)]
 #![deny(dead_code)]
-#![deny(clippy::all)]
+#![deny(clippy::all, clippy::perf, clippy::nursery, clippy::pedantic)]
+#![deny(clippy::filetype_is_file)]
 #![deny(clippy::cargo)]
-#![deny(clippy::pedantic)]
-#![deny(clippy::perf)]
-#![deny(clippy::nursery)]
 #![deny(clippy::unwrap_used)]
 #![deny(clippy::panic)]
 #![deny(clippy::match_like_matches_macro)]