1 files changed, 1 insertions, 0 deletions
diff --git a/otk/otk.hh b/otk/otk.hh
index b6e24a75..b06afcbf 100644
--- a/otk/otk.hh
+++ b/otk/otk.hh
@@ -29,6 +29,7 @@
 #include "timerqueue.hh"
 #include "timerqueuemanager.hh"
 #include "util.hh"
+#include "ustring.hh"
 #include "widget.hh"
 
 #endif // __otk_hh