diff --git a/facefusion/codecs/aom_encoder.py b/facefusion/codecs/aom_encoder.py
index 650b60d8..d3f7eefe 100644
--- a/facefusion/codecs/aom_encoder.py
+++ b/facefusion/codecs/aom_encoder.py
@@ -62,7 +62,7 @@ def collect(aom_encoder : AomEncoder) -> bytes:
 
 		packet = aom_library.aom_codec_get_cx_data(aom_encoder, ctypes.byref(packet_cursor))
 
-	return b''.join(output_parts)
+	return bytes().join(output_parts)
 
 
 def destroy(aom_encoder : AomEncoder) -> None:
diff --git a/facefusion/codecs/vpx_encoder.py b/facefusion/codecs/vpx_encoder.py
index 89a567ba..c03cccf5 100644
--- a/facefusion/codecs/vpx_encoder.py
+++ b/facefusion/codecs/vpx_encoder.py
@@ -66,7 +66,7 @@ def collect(vpx_encoder : VpxEncoder) -> bytes:
 
 		packet = vpx_library.vpx_codec_get_cx_data(vpx_encoder, ctypes.byref(packet_cursor))
 
-	return b''.join(output_parts)
+	return bytes().join(output_parts)
 
 
 def destroy(vpx_encoder : VpxEncoder) -> None: