diff --git a/vp9/vp9_cx_iface.c b/vp9/vp9_cx_iface.c
index 6b874f023febe0a5992614f15461d480145c64d6..fb0fe58d3faf3f28f00943d6600b72587044fa9e 100644
--- a/vp9/vp9_cx_iface.c
+++ b/vp9/vp9_cx_iface.c
@@ -1033,8 +1033,6 @@ static vpx_codec_err_t ctrl_set_previewpp(vpx_codec_alg_priv_t *ctx,
                                           va_list args) {
 #if CONFIG_VP9_POSTPROC
   vp8_postproc_cfg_t *config = va_arg(args, vp8_postproc_cfg_t *);
-  (void)ctr_id;
-
   if (config != NULL) {
     ctx->preview_ppcfg = *config;
     return VPX_CODEC_OK;