diff --git a/packaging/gentoo/current_testing.ebuild b/packaging/gentoo/current_testing.ebuild
index 525200fb..67d55172 100644
--- a/packaging/gentoo/current_testing.ebuild
+++ b/packaging/gentoo/current_testing.ebuild
@@ -28,7 +28,8 @@ RDEPEND="
 	graph? ( dev-python/numpy
 		dev-python/matplotlib[gtk] )
 	dev-python/python-xlib
-	dev-python/pytz"
+	dev-python/pytz
+	x11-apps/xwininfo"
 DEPEND="${RDEPEND}"
 
 src_install() {