diff --git a/media/libheadtracking/Twist.cpp b/media/libheadtracking/Twist.cpp
index 664c4d5..63b9e69 100644
--- a/media/libheadtracking/Twist.cpp
+++ b/media/libheadtracking/Twist.cpp
@@ -16,7 +16,7 @@
 
 #include "media/Twist.h"
 
-#include "QuaternionUtil.h"
+#include "media/QuaternionUtil.h"
 
 namespace android {
 namespace media {