diff --git a/libmpdemux/demux_mkv_old.cpp b/libmpdemux/demux_mkv_old.cpp
index 47f3b4cbfc..d3ea0f452e 100644
--- a/libmpdemux/demux_mkv_old.cpp
+++ b/libmpdemux/demux_mkv_old.cpp
@@ -1552,7 +1552,7 @@ extern "C" int demux_mkv_open(demuxer_t *demuxer) {
   qt_image_description_t *idesc;
 
 #ifdef USE_ICONV
-  subcp_open();
+  subcp_open_noenca();
 #endif
 
   s = demuxer->stream;