diff --git a/vp9/encoder/vp9_psnrhvs.c b/vp9/encoder/vp9_psnrhvs.c
index 2e7e345ac..a91a4eed5 100644
--- a/vp9/encoder/vp9_psnrhvs.c
+++ b/vp9/encoder/vp9_psnrhvs.c
@@ -16,6 +16,7 @@
 
 #include "./vpx_config.h"
 #include "./vp9_rtcd.h"
+#include "./vpx_dsp_rtcd.h"
 #include "vp9/encoder/vp9_ssim.h"
 
 #if !defined(M_PI)