diff --git a/libavformat/aviobuf.c b/libavformat/aviobuf.c
index 6a5cd97b0a..2d011027c9 100644
--- a/libavformat/aviobuf.c
+++ b/libavformat/aviobuf.c
@@ -1180,12 +1180,6 @@ int avio_open2(AVIOContext **s, const char *filename, int flags,
     return ffio_open_whitelist(s, filename, flags, int_cb, options, NULL, NULL);
 }
 
-int ffio_open2_wrapper(struct AVFormatContext *s, AVIOContext **pb, const char *url, int flags,
-                       const AVIOInterruptCB *int_cb, AVDictionary **options)
-{
-    return ffio_open_whitelist(pb, url, flags, int_cb, options, s->protocol_whitelist, s->protocol_blacklist);
-}
-
 int avio_close(AVIOContext *s)
 {
     AVIOInternal *internal;
diff --git a/libavformat/internal.h b/libavformat/internal.h
index 399d0a68be..cf8c16579c 100644
--- a/libavformat/internal.h
+++ b/libavformat/internal.h
@@ -650,9 +650,6 @@ enum AVWriteUncodedFrameFlags {
  */
 int ff_copy_whiteblacklists(AVFormatContext *dst, const AVFormatContext *src);
 
-int ffio_open2_wrapper(struct AVFormatContext *s, AVIOContext **pb, const char *url, int flags,
-                       const AVIOInterruptCB *int_cb, AVDictionary **options);
-
 /**
  * Returned by demuxers to indicate that data was consumed but discarded
  * (ignored streams or junk data). The framework will re-call the demuxer.