diff --git a/README.md b/README.md
index 872e51b..18fb2f5 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,7 @@ All file managers which are compatible with `/usr/share/thumbnailers` thumbnaile
 - [Nautilus (GNOME)](https://gitlab.gnome.org/GNOME/nautilus)
 - [Nemo (Cinnamon)](https://github.com/linuxmint/nemo)
 - [PCManFM (LXDE)](https://github.com/lxde/pcmanfm)
+- [PCManFM-Qt (LXQt)](https://github.com/lxqt/pcmanfm-qt)
 - [Thunar (Xfce)](https://gitlab.xfce.org/xfce/thunar)
 
 So far the following file types are supported:
@@ -19,3 +20,4 @@ So far the following file types are supported:
 - **ePub** (compressed as ZIP, with a cover specified as a `cover-image` property, or a `cover` meta tag).
 - **MP3** (with album art specified in their ID3 images tag)
 - **RAW** (compatible with dcraw)
+- **aiff** (for audio files with cover art embedded in their tags)
diff --git a/files/usr/bin/xapp-aiff-thumbnailer b/files/usr/bin/xapp-aiff-thumbnailer
index 5a21402..508452c 100644
--- a/files/usr/bin/xapp-aiff-thumbnailer
+++ b/files/usr/bin/xapp-aiff-thumbnailer
@@ -11,12 +11,10 @@ thumbnailer = Thumbnailer()
 
 def extract_cover_aiff_file(filepath: Path) -> bytes | None:
     try:
-        if not filepath.is_file() or not filepath.suffix.lower() == ".aiff":
-            return None
         aiff_file: AIFF = AIFF(str(filepath))
         if aiff_file.tags is None:
             return None
-        return cast(bytes, aiff_file.tags.getall("APIC")[0].data)
+        return cast(bytes, aiff_file.tags.getall(key="APIC")[0].data)
     except:
         return None
 
diff --git a/files/usr/share/thumbnailers/xapp-aiff-thumbnailer.thumbnailer b/files/usr/share/thumbnailers/xapp-aiff-thumbnailer.thumbnailer
index 9d7f596..eb63694 100644
--- a/files/usr/share/thumbnailers/xapp-aiff-thumbnailer.thumbnailer
+++ b/files/usr/share/thumbnailers/xapp-aiff-thumbnailer.thumbnailer
@@ -1,4 +1,4 @@
 [Thumbnailer Entry]
 TryExec=xapp-aiff-thumbnailer
 Exec=xapp-aiff-thumbnailer -i %i -o %o -s %s
-MimeType=audio/x-aiff
\ No newline at end of file
+MimeType=audio/x-aiff;audio/aiff
\ No newline at end of file