diff --git a/src/files.rs b/src/files.rs
index 0261150..9ef7be4 100644
--- a/src/files.rs
+++ b/src/files.rs
@@ -32,6 +32,7 @@ fn is_image_or_video(path: &Path) -> bool {
         || extension == "jpeg"
         || extension == "mp4"
         || extension == "mov"
+        || extension == "nef"
 }
 
 pub fn is_valid_path(path: &str) -> Option<PathBuf> {
diff --git a/src/main.rs b/src/main.rs
index ef9aa7a..072c4b0 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -278,7 +278,7 @@ async fn create_thumbnails() {
                     generate_video_thumbnail(entry.path(), &thumb_path);
                     false
                 } else {
-                    ext == "jpg" || ext == "jpeg" || ext == "png"
+                    ext == "jpg" || ext == "jpeg" || ext == "png" || ext == "nef"
                 }
             } else {
                 false