diff --git a/demux/demux_libarchive.c b/demux/demux_libarchive.c
index bb2ca24862..80bd3e240e 100644
--- a/demux/demux_libarchive.c
+++ b/demux/demux_libarchive.c
@@ -74,7 +74,7 @@ static int open_file(struct demuxer *demuxer, enum demux_check check)
 
     while (mp_archive_next_entry(mpa)) {
         // stream_libarchive.c does the real work
-        char *f = talloc_asprintf(mpa, "archive://%s|%s", prefix,
+        char *f = talloc_asprintf(mpa, "archive://%s|/%s", prefix,
                                   mpa->entry_filename);
         MP_TARRAY_APPEND(mpa, files, num_files, f);
     }
diff --git a/stream/stream_libarchive.c b/stream/stream_libarchive.c
index e3109dfb0a..2e300f3747 100644
--- a/stream/stream_libarchive.c
+++ b/stream/stream_libarchive.c
@@ -485,7 +485,9 @@ static int archive_entry_open(stream_t *stream)
     char *base = talloc_strdup(p, stream->path);
     char *name = strchr(base, '|');
     *name++ = '\0';
-    p->entry_name = name;
+    if (name[0] != '/')
+        return STREAM_ERROR;
+    p->entry_name = name + 1;
     mp_url_unescape_inplace(base);
 
     p->src = stream_create(base, STREAM_READ | STREAM_SAFE_ONLY,