diff --git a/libs/subliminal_patch/providers/embeddedsubtitles.py b/libs/subliminal_patch/providers/embeddedsubtitles.py
index 76e8afdf4..828648432 100644
--- a/libs/subliminal_patch/providers/embeddedsubtitles.py
+++ b/libs/subliminal_patch/providers/embeddedsubtitles.py
@@ -328,7 +328,7 @@ def _discard_possible_incomplete_subtitles(streams):
 
     for stream in streams:
         # 500 < 1200
-        if not stream.language.forced and stream.tags.frames < max_frames // 2:
+        if not stream.language.forced and stream.tags.frames < max_frames // 3:
             logger.debug(
                 "Possible bad subtitle found: %s (%s frames - %s frames)",
                 stream,