diff --git a/devine/commands/dl.py b/devine/commands/dl.py
index 022561d..d585c76 100644
--- a/devine/commands/dl.py
+++ b/devine/commands/dl.py
@@ -341,7 +341,7 @@ class dl:
                     non_sdh_sub = deepcopy(subtitle)
                     non_sdh_sub.id += "_stripped"
                     non_sdh_sub.sdh = False
-                    non_sdh_sub.OnMultiplex = lambda x: x.strip_hearing_impaired()
+                    non_sdh_sub.OnMultiplex = lambda: non_sdh_sub.strip_hearing_impaired()
                     title.tracks.add(non_sdh_sub)
 
             with console.status("Sorting tracks by language and bitrate...", spinner="dots"):
@@ -585,7 +585,7 @@ class dl:
                             track.repackage()
                             has_repacked = True
                             if callable(track.OnRepacked):
-                                track.OnRepacked(track)
+                                track.OnRepacked()
                     if has_repacked:
                         # we don't want to fill up the log with "Repacked x track"
                         self.log.info("Repacked one or more tracks with FFMPEG")
@@ -899,7 +899,7 @@ class dl:
                             drm.decrypt(save_path)
                             track.drm = None
                             if callable(track.OnDecrypted):
-                                track.OnDecrypted(track)
+                                track.OnDecrypted()
                             progress(downloaded="Decrypted", completed=100)
 
                         if isinstance(track, Subtitle):
@@ -931,7 +931,7 @@ class dl:
                 raise IOError("Download failed, the downloaded file is empty.")
 
             if callable(track.OnDownloaded):
-                track.OnDownloaded(track)
+                track.OnDownloaded()
 
     @staticmethod
     def get_profile(service: str) -> Optional[str]:
diff --git a/devine/core/manifests/dash.py b/devine/core/manifests/dash.py
index 6b4502f..129cd88 100644
--- a/devine/core/manifests/dash.py
+++ b/devine/core/manifests/dash.py
@@ -507,7 +507,7 @@ class DASH:
             drm.decrypt(save_path)
             track.drm = None
             if callable(track.OnDecrypted):
-                track.OnDecrypted(track)
+                track.OnDecrypted()
             progress(downloaded="Decrypted", completed=100)
 
         track.path = save_path
diff --git a/devine/core/manifests/hls.py b/devine/core/manifests/hls.py
index 6afe1ad..1639eb6 100644
--- a/devine/core/manifests/hls.py
+++ b/devine/core/manifests/hls.py
@@ -511,7 +511,7 @@ class HLS:
             newest_segment_key[0].decrypt(out_path)
             track.drm = None
             if callable(track.OnDecrypted):
-                track.OnDecrypted(track)
+                track.OnDecrypted()
 
         return download_size
 
diff --git a/devine/core/tracks/tracks.py b/devine/core/tracks/tracks.py
index 65c945c..d96804c 100644
--- a/devine/core/tracks/tracks.py
+++ b/devine/core/tracks/tracks.py
@@ -304,7 +304,7 @@ class Tracks:
             if not vt.path or not vt.path.exists():
                 raise ValueError("Video Track must be downloaded before muxing...")
             if callable(vt.OnMultiplex):
-                vt.OnMultiplex(vt)
+                vt.OnMultiplex()
             cl.extend([
                 "--language", "0:{}".format(LANGUAGE_MUX_MAP.get(
                     str(vt.language), str(vt.language)
@@ -319,7 +319,7 @@ class Tracks:
             if not at.path or not at.path.exists():
                 raise ValueError("Audio Track must be downloaded before muxing...")
             if callable(at.OnMultiplex):
-                at.OnMultiplex(at)
+                at.OnMultiplex()
             cl.extend([
                 "--track-name", f"0:{at.get_track_name() or ''}",
                 "--language", "0:{}".format(LANGUAGE_MUX_MAP.get(
@@ -336,7 +336,7 @@ class Tracks:
             if not st.path or not st.path.exists():
                 raise ValueError("Text Track must be downloaded before muxing...")
             if callable(st.OnMultiplex):
-                st.OnMultiplex(st)
+                st.OnMultiplex()
             default = bool(self.audio and is_close_match(st.language, [self.audio[0].language]) and st.forced)
             cl.extend([
                 "--track-name", f"0:{st.get_track_name() or ''}",