diff --git a/vp9/encoder/vp9_ratectrl.c b/vp9/encoder/vp9_ratectrl.c
index 7aa4b39edbeba7d31fa5acbb1a25a4ab6a847dcd..a5560631f06f31f80d97cf6417ea06a3299393f6 100644
--- a/vp9/encoder/vp9_ratectrl.c
+++ b/vp9/encoder/vp9_ratectrl.c
@@ -1338,9 +1338,10 @@ static int calc_pframe_target_size_one_pass_cbr(const VP9_COMP *cpi) {
 
 static int calc_iframe_target_size_one_pass_cbr(const VP9_COMP *cpi) {
   const RATE_CONTROL *rc = &cpi->rc;
+  int target;
 
   if (cpi->common.current_video_frame == 0) {
-    return ((cpi->oxcf.starting_buffer_level / 2) > INT_MAX)
+    target = ((cpi->oxcf.starting_buffer_level / 2) > INT_MAX)
       ? INT_MAX : (int)(cpi->oxcf.starting_buffer_level / 2);
   } else {
     const int initial_boost = 32;
@@ -1349,8 +1350,9 @@ static int calc_iframe_target_size_one_pass_cbr(const VP9_COMP *cpi) {
       kf_boost = (int)(kf_boost * rc->frames_since_key /
                        (cpi->output_framerate / 2));
     }
-    return ((16 + kf_boost) * rc->av_per_frame_bandwidth) >> 4;
+    target = ((16 + kf_boost) * rc->av_per_frame_bandwidth) >> 4;
   }
+  return vp9_rc_clamp_iframe_target_size(cpi, target);
 }
 
 void vp9_rc_get_svc_params(VP9_COMP *cpi) {