Missing using.

diff --git a/src/util.cc b/src/util.cc
index 8624ae5184e3273acbd9194fcf9bc785815d7a97..3508e64fe16812781e0d102880a9033f7a0f3150 100644 (file)
--- a/src/util.cc
+++ b/src/util.cc
@@ -46,6 +46,7 @@
 #include "xyz_frame.h"
 
 using std::string;
+using std::wstring;
 using std::cout;
 using std::stringstream;
 using std::min;