[cleanup] Use format_field where applicable

1 files changed, 2 insertions, 1 deletions

diff --git a/yt_dlp/extractor/carambatv.py b/yt_dlp/extractor/carambatv.py
index b57b86af7..7e5cc90fb 100644
--- a/yt_dlp/extractor/carambatv.py
+++ b/yt_dlp/extractor/carambatv.py
@@ -4,6 +4,7 @@ from __future__ import unicode_literals
 from .common import InfoExtractor
 from ..compat import compat_str
 from ..utils import (
+    format_field,
     float_or_none,
     int_or_none,
     try_get,
@@ -43,7 +44,7 @@ class CarambaTVIE(InfoExtractor):
         formats = [{
             'url': base_url + f['fn'],
             'height': int_or_none(f.get('height')),
-            'format_id': '%sp' % f['height'] if f.get('height') else None,
+            'format_id': format_field(f, 'height', '%sp'),
         } for f in video['qualities'] if f.get('fn')]
         self._sort_formats(formats)