diff --git a/kde/package.use b/kde/package.use
index 7955f1d..a5b9c08 100644
--- a/kde/package.use
+++ b/kde/package.use
@@ -44,3 +44,4 @@ virtual/udev hwdb gudev
 app-crypt/pinentry qt4
 media-libs/mesa python_targets_python2_7 python_single_target_python2_7
 kde-base/superkaramba python_targets_python2_7 python_single_target_python2_7
+dev-libs/boost threads