diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index 403d62e0b2..68ba451fa4 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -3269,7 +3269,7 @@ static void print_long_term(H264Context *h) {
  */
 static int execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count){
     MpegEncContext * const s = &h->s;
-    int i, j;
+    int i, av_uninit(j);
     int current_ref_assigned=0;
     Picture *av_uninit(pic);
 
@@ -3277,7 +3277,7 @@ static int execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count){
         av_log(h->s.avctx, AV_LOG_DEBUG, "no mmco here\n");
 
     for(i=0; i<mmco_count; i++){
-        int structure, av_uninit(frame_num);
+        int av_uninit(structure), av_uninit(frame_num);
         if(s->avctx->debug&FF_DEBUG_MMCO)
             av_log(h->s.avctx, AV_LOG_DEBUG, "mmco:%d %d %d\n", h->mmco[i].opcode, h->mmco[i].short_pic_num, h->mmco[i].long_arg);