--- a/apps/sample_code/sparse_field_io/main.cpp
+++ b/apps/sample_code/sparse_field_io/main.cpp
@@ -38,7 +38,7 @@
 #include <vector>
 
 #include <boost/lexical_cast.hpp>
-#include <boost/timer.hpp>
+#include <boost/timer/timer.hpp>
 
 #include <Field3D/SparseField.h>
 #include <Field3D/SparseFile.h>
