diff --git a/libmpegts.c b/libmpegts.c
index f83d901..94516ea 100644
--- a/libmpegts.c
+++ b/libmpegts.c
@@ -1089,7 +1089,7 @@ int ts_setup_transport_stream( ts_writer_t *w, ts_main_t *params )
     return 0;
 }
 
-int ts_update_transport_stream( ts_writer_t *w, ts_main_t *params )
+void ts_update_transport_stream( ts_writer_t *w, ts_main_t *params )
 {
     int64_t cur_pcr = get_pcr_int( w, 0 );
     if( params->muxrate != w->ts_muxrate )
diff --git a/libmpegts.h b/libmpegts.h
index ffc996f..2d694e9 100644
--- a/libmpegts.h
+++ b/libmpegts.h
@@ -336,7 +336,7 @@ int ts_setup_transport_stream( ts_writer_t *w, ts_main_t *params );
  * TODO: implement versioning so other parameters can be updated
  *
  */
-int ts_update_transport_stream( ts_writer_t *w, ts_main_t *params );
+void ts_update_transport_stream( ts_writer_t *w, ts_main_t *params );
 
 /**** Additional Codec-Specific functions ****/
 /* Many formats require extra information. Setup the relevant information using the following functions */