diff --git a/yt_dlp/YoutubeDL.py b/yt_dlp/YoutubeDL.py
index 8790b326b..bde37f291 100644
--- a/yt_dlp/YoutubeDL.py
+++ b/yt_dlp/YoutubeDL.py
@@ -3733,6 +3733,9 @@ def run_pp(self, pp, infodict):
                 return infodict
             raise
 
+        if pp.PP_NAME == 'SubtitlesConvertor' and self.params.get('keepintermediate', False) == 'ConvertSubs':
+            files_to_delete = []
+
         if not files_to_delete:
             return infodict
         if self.params.get('keepvideo', False):