1 files changed, 2 insertions, 2 deletions

diff --git a/src/Xutil.hh b/src/Xutil.hh
index 70fa8ed..490f615 100644
--- a/src/Xutil.hh
+++ b/src/Xutil.hh
@@ -30,8 +30,8 @@ namespace Xutil {
 
 FbTk::FbString getWMName(Window window);
 
-std::string getWMClassName(Window win);
-std::string getWMClassClass(Window win);
+FbTk::FbString getWMClassName(Window win);
+FbTk::FbString getWMClassClass(Window win);
 
 
 } // end namespace Xutil