diff --git a/subprojects/gst-plugins-bad/sys/v4l2codecs/gstv4l2codecmpeg2dec.c b/subprojects/gst-plugins-bad/sys/v4l2codecs/gstv4l2codecmpeg2dec.c
index e3a31dab53..5d7fb81c38 100644
--- a/subprojects/gst-plugins-bad/sys/v4l2codecs/gstv4l2codecmpeg2dec.c
+++ b/subprojects/gst-plugins-bad/sys/v4l2codecs/gstv4l2codecmpeg2dec.c
@@ -567,8 +567,8 @@ gst_v4l2_codec_mpeg2_dec_start_picture (GstMpeg2Decoder * decoder,
 
   /* *INDENT-OFF* */
   self->v4l2_picture = (struct v4l2_ctrl_mpeg2_picture) {
-    .backward_ref_ts = next_picture ? next_picture->system_frame_number * 1000 : GST_CLOCK_TIME_NONE,
-    .forward_ref_ts = prev_picture ? prev_picture->system_frame_number * 1000 : GST_CLOCK_TIME_NONE,
+    .backward_ref_ts = next_picture ? next_picture->system_frame_number * G_GUINT64_CONSTANT (1000) : GST_CLOCK_TIME_NONE,
+    .forward_ref_ts = prev_picture ? prev_picture->system_frame_number * G_GUINT64_CONSTANT (1000) : GST_CLOCK_TIME_NONE,
     .intra_dc_precision = slice->pic_ext ? slice->pic_ext->intra_dc_precision : 0,
     .flags = (slice->pic_ext && slice->pic_ext->top_field_first ? V4L2_MPEG2_PIC_FLAG_TOP_FIELD_FIRST : 0) |
              (slice->pic_ext && slice->pic_ext->frame_pred_frame_dct ? V4L2_MPEG2_PIC_FLAG_FRAME_PRED_DCT : 0 ) |