diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index 74369e55a5..6238545715 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -3237,7 +3237,7 @@ void ff_MPV_report_decode_progress(MpegEncContext *s)
 }
 
 #if CONFIG_ERROR_RESILIENCE
-void ff_mpeg_set_erpic(ERPicture *dst, Picture *src)
+static void set_erpic(ERPicture *dst, Picture *src)
 {
     int i;
 
@@ -3264,9 +3264,9 @@ void ff_mpeg_er_frame_start(MpegEncContext *s)
 {
     ERContext *er = &s->er;
 
-    ff_mpeg_set_erpic(&er->cur_pic, s->current_picture_ptr);
-    ff_mpeg_set_erpic(&er->next_pic, s->next_picture_ptr);
-    ff_mpeg_set_erpic(&er->last_pic, s->last_picture_ptr);
+    set_erpic(&er->cur_pic,  s->current_picture_ptr);
+    set_erpic(&er->next_pic, s->next_picture_ptr);
+    set_erpic(&er->last_pic, s->last_picture_ptr);
 
     er->pp_time           = s->pp_time;
     er->pb_time           = s->pb_time;
diff --git a/libavcodec/mpegvideo.h b/libavcodec/mpegvideo.h
index 9dc4fb28d6..0cfe7af9ba 100644
--- a/libavcodec/mpegvideo.h
+++ b/libavcodec/mpegvideo.h
@@ -755,7 +755,6 @@ void ff_set_qscale(MpegEncContext * s, int qscale);
 
 /* Error resilience */
 void ff_mpeg_er_frame_start(MpegEncContext *s);
-void ff_mpeg_set_erpic(ERPicture *dst, Picture *src);
 
 int ff_dct_common_init(MpegEncContext *s);
 int ff_dct_encode_init(MpegEncContext *s);