diff --git a/demux/demux.c b/demux/demux.c
index e29956af12..e901a9352b 100644
--- a/demux/demux.c
+++ b/demux/demux.c
@@ -900,7 +900,6 @@ static struct demuxer *open_given_type(struct mpv_global *global,
     struct demuxer *demuxer = talloc_ptrtype(NULL, demuxer);
     *demuxer = (struct demuxer) {
         .desc = desc,
-        .type = desc->type,
         .stream = stream,
         .seekable = stream->seekable,
         .filepos = -1,
diff --git a/demux/demux.h b/demux/demux.h
index 14154cef0c..cd897be7e2 100644
--- a/demux/demux.h
+++ b/demux/demux.h
@@ -36,11 +36,6 @@
 #define MAX_PACKS 16000
 #define MAX_PACK_BYTES (400 * 1024 * 1024)
 
-enum demuxer_type {
-    DEMUXER_TYPE_GENERIC = 0,
-    DEMUXER_TYPE_MATROSKA,
-};
-
 // DEMUXER control commands/answers
 #define DEMUXER_CTRL_NOTIMPL -1
 #define DEMUXER_CTRL_DONTKNOW 0
@@ -111,8 +106,6 @@ typedef struct demuxer_desc {
     const char *name;      // Demuxer name, used with -demuxer switch
     const char *desc;      // Displayed to user
 
-    enum demuxer_type type; // optional
-
     // Return 0 on success, otherwise -1
     int (*open)(struct demuxer *demuxer, enum demux_check check);
     // The following functions are all optional
@@ -185,7 +178,6 @@ typedef struct demuxer {
     const char *filetype; // format name when not identified by demuxer (libavformat)
     int64_t filepos;  // input stream current pos.
     char *filename;  // same as stream->url
-    enum demuxer_type type;
     bool seekable;
     bool partially_seekable; // implies seekable=true
     double start_time;
diff --git a/demux/demux_mkv.c b/demux/demux_mkv.c
index b1a299feca..2c1f34d70c 100644
--- a/demux/demux_mkv.c
+++ b/demux/demux_mkv.c
@@ -2884,7 +2884,6 @@ static void mkv_free(struct demuxer *demuxer)
 const demuxer_desc_t demuxer_desc_matroska = {
     .name = "mkv",
     .desc = "Matroska",
-    .type = DEMUXER_TYPE_MATROSKA,
     .open = demux_mkv_open,
     .fill_buffer = demux_mkv_fill_buffer,
     .close = mkv_free,
diff --git a/demux/demux_mkv_timeline.c b/demux/demux_mkv_timeline.c
index 57bb93e1cd..1a1816b93e 100644
--- a/demux/demux_mkv_timeline.c
+++ b/demux/demux_mkv_timeline.c
@@ -212,45 +212,45 @@ static bool check_file_seg(struct tl_ctx *ctx, struct demuxer ***sources,
         free_stream(s);
         return was_valid;
     }
-    if (d->type == DEMUXER_TYPE_MATROSKA) {
-        struct matroska_data *m = &d->matroska_data;
 
-        for (int i = 1; i < *num_sources; i++) {
-            struct matroska_segment_uid *uid = *uids + i;
-            if ((*sources)[i])
-                continue;
-            /* Accept the source if the segment uid matches and the edition
-             * either matches or isn't specified. */
-            if (!memcmp(uid->segment, m->uid.segment, 16) &&
-                (!uid->edition || uid->edition == m->uid.edition))
-            {
-                MP_INFO(ctx, "Match for source %d: %s\n", i, d->filename);
+    struct matroska_data *m = &d->matroska_data;
 
-                for (int j = 0; j < m->num_ordered_chapters; j++) {
-                    struct matroska_chapter *c = m->ordered_chapters + j;
+    for (int i = 1; i < *num_sources; i++) {
+        struct matroska_segment_uid *uid = *uids + i;
+        if ((*sources)[i])
+            continue;
+        /* Accept the source if the segment uid matches and the edition
+            * either matches or isn't specified. */
+        if (!memcmp(uid->segment, m->uid.segment, 16) &&
+            (!uid->edition || uid->edition == m->uid.edition))
+        {
+            MP_INFO(ctx, "Match for source %d: %s\n", i, d->filename);
 
-                    if (!c->has_segment_uid)
-                        continue;
+            for (int j = 0; j < m->num_ordered_chapters; j++) {
+                struct matroska_chapter *c = m->ordered_chapters + j;
 
-                    if (has_source_request(*uids, *num_sources, &c->uid))
-                        continue;
-
-                    /* Set the requested segment. */
-                    MP_TARRAY_GROW(NULL, *uids, *num_sources);
-                    (*uids)[*num_sources] = c->uid;
-
-                    /* Add a new source slot. */
-                    MP_TARRAY_APPEND(NULL, *sources, *num_sources, NULL);
-                }
-
-                if (enable_cache(ctx->global, &s, &d, &params) < 0)
+                if (!c->has_segment_uid)
                     continue;
 
-                (*sources)[i] = d;
-                return true;
+                if (has_source_request(*uids, *num_sources, &c->uid))
+                    continue;
+
+                /* Set the requested segment. */
+                MP_TARRAY_GROW(NULL, *uids, *num_sources);
+                (*uids)[*num_sources] = c->uid;
+
+                /* Add a new source slot. */
+                MP_TARRAY_APPEND(NULL, *sources, *num_sources, NULL);
             }
+
+            if (enable_cache(ctx->global, &s, &d, &params) < 0)
+                continue;
+
+            (*sources)[i] = d;
+            return true;
         }
     }
+
     free_demuxer(d);
     free_stream(s);
     return was_valid;