diff --git a/libavcodec/h264.h b/libavcodec/h264.h
index 1cb4cd679c..f5a2a90bb1 100644
--- a/libavcodec/h264.h
+++ b/libavcodec/h264.h
@@ -731,7 +731,7 @@ int ff_h264_get_slice_type(const H264SliceContext *sl);
 int ff_h264_alloc_tables(H264Context *h);
 
 int ff_h264_decode_ref_pic_list_reordering(H264Context *h, H264SliceContext *sl);
-void ff_h264_fill_mbaff_ref_list(H264Context *h, H264SliceContext *sl);
+void ff_h264_fill_mbaff_ref_list(H264SliceContext *sl);
 void ff_h264_remove_all_refs(H264Context *h);
 
 /**
diff --git a/libavcodec/h264_refs.c b/libavcodec/h264_refs.c
index 6de532bd20..01eb9db234 100644
--- a/libavcodec/h264_refs.c
+++ b/libavcodec/h264_refs.c
@@ -401,7 +401,7 @@ int ff_h264_decode_ref_pic_list_reordering(H264Context *h, H264SliceContext *sl)
     return 0;
 }
 
-void ff_h264_fill_mbaff_ref_list(H264Context *h, H264SliceContext *sl)
+void ff_h264_fill_mbaff_ref_list(H264SliceContext *sl)
 {
     int list, i, j;
     for (list = 0; list < sl->list_count; list++) {
diff --git a/libavcodec/h264_slice.c b/libavcodec/h264_slice.c
index 2ef3065e28..2640c22b7a 100644
--- a/libavcodec/h264_slice.c
+++ b/libavcodec/h264_slice.c
@@ -1680,7 +1680,7 @@ int ff_h264_decode_slice_header(H264Context *h, H264SliceContext *sl)
     }
 
     if (FRAME_MBAFF(h)) {
-        ff_h264_fill_mbaff_ref_list(h, sl);
+        ff_h264_fill_mbaff_ref_list(sl);
 
         if (pps->weighted_bipred_idc == 2 && sl->slice_type_nos == AV_PICTURE_TYPE_B) {
             implicit_weight_table(h, sl, 0);