diff --git a/mainwindow.cc b/mainwindow.cc
index 47de54017..bab277075 100644
--- a/mainwindow.cc
+++ b/mainwindow.cc
@@ -76,7 +76,6 @@
 #define MIN_THREAD_COUNT 4
 
 using std::set;
-using std::wstring;
 using std::map;
 using std::pair;
 
diff --git a/scanpopup.cc b/scanpopup.cc
index aa4bccfcb..add822825 100644
--- a/scanpopup.cc
+++ b/scanpopup.cc
@@ -20,7 +20,6 @@
 #define MouseOver MacMouseOver
 #endif
 #include "base_type.h"
-using std::wstring;
 
 /// We use different window flags under Windows and X11 due to slight differences
 /// in their behavior on those platforms.