diff --git a/make_folders.py b/make_folders.py
index 191b0fc..202183d 100755
--- a/make_folders.py
+++ b/make_folders.py
@@ -236,10 +236,13 @@ def check_title_songname(x: str, audio):
         # Set both TPE1 (song artist) and TPE2 (album artist)
         audio["TPE1"] = TPE1(encoding=3, text=artist)
         audio["TPE2"] = TPE2(encoding=3, text=artist)
-        audio["artist"] = artist
+        # Only set 'artist' as a string for FLAC, not for MP3
+        if hasattr(audio, 'mime') and audio.mime and 'flac' in audio.mime[0].lower():
+            audio["artist"] = artist
         # Set title tags
         audio["TIT2"] = TIT2(encoding=3, text=title)
-        audio["title"] = title
+        if hasattr(audio, 'mime') and audio.mime and 'flac' in audio.mime[0].lower():
+            audio["title"] = title
         logging.info(f"Set artist: {artist}, title: {title}")
     else:
         logging.info("no - found in title, setting full name as title: " + x)