diff --git a/vp9/encoder/vp9_rdopt.c b/vp9/encoder/vp9_rdopt.c
index 8c91594a878297f64f7e83f0a487ccf2e888edbc..b311f396a05d1b8eb6cd7a72b413c424cda94471 100644
--- a/vp9/encoder/vp9_rdopt.c
+++ b/vp9/encoder/vp9_rdopt.c
@@ -36,7 +36,7 @@
 #include "vp9/common/vp9_seg_common.h"
 #include "vp9/common/vp9_pred_common.h"
 #include "vp9/common/vp9_entropy.h"
-#include "vp9_rtcd.h"
+#include "./vp9_rtcd.h"
 #include "vp9/common/vp9_mvref_common.h"
 #include "vp9/common/vp9_common.h"