diff --git a/luz-musica.py b/luz-musica.py
index d884c3b..b566b6d 100644
--- a/luz-musica.py
+++ b/luz-musica.py
@@ -109,12 +109,12 @@ class ControlState:
             verse_lines, verse_active = find_active_verse(verses, position)
             line = verse_lines[verse_active] if verse_active >= 0 and verse_lines else ""
             return {
-                "art_url":      getattr(self, "_art_url", None),
-                "rgb":          list(getattr(self, "_rgb",  [0, 200, 255])),
-                "rgb2":         list(getattr(self, "_rgb2", [255, 0, 150])),
-                "lyric_line":   line,
-                "verse_lines":  verse_lines,
-                "verse_active": verse_active,
+                "art_url":       getattr(self, "_art_url", None),
+                "rgb":           list(getattr(self, "_rgb",  [0, 200, 255])),
+                "rgb2":          list(getattr(self, "_rgb2", [255, 0, 150])),
+                "lyric_line":    line,
+                "verse_lines":   verse_lines,
+                "verse_active":  verse_active,
             }
 
 
@@ -139,7 +139,8 @@ class ControlHandler(BaseHTTPRequestHandler):
                 return
             try:
                 if art_url.startswith("file://"):
-                    body = open(art_url[7:], "rb").read()
+                    with open(art_url[7:], "rb") as f:
+                        body = f.read()
                     ctype = "image/png" if art_url.endswith(".png") else "image/jpeg"
                 else:
                     resp = requests.get(art_url, timeout=5)