diff --git a/ext/x264/gstx264enc.c b/ext/x264/gstx264enc.c
index c3c64a5841..b717d0184e 100644
--- a/ext/x264/gstx264enc.c
+++ b/ext/x264/gstx264enc.c
@@ -594,7 +594,9 @@ gst_x264_enc_init_encoder (GstX264Enc * encoder)
   encoder->x264param.analyse.inter = encoder->analyse;
   encoder->x264param.analyse.b_transform_8x8 = encoder->dct8x8;
   encoder->x264param.analyse.b_weighted_bipred = encoder->weightb;
+#if X264_BUILD > 78
   encoder->x264param.analyse.i_weighted_pred = 0;
+#endif
   encoder->x264param.analyse.i_noise_reduction = encoder->noise_reduction;
   encoder->x264param.i_frame_reference = encoder->ref;
   encoder->x264param.i_bframe = encoder->bframes;