diff --git a/kde-apps/korganizer/korganizer-18.08.3.ebuild b/kde-apps/korganizer/korganizer-18.08.3.ebuild
index d2c630c1f07b7..43978fc501c9b 100644
--- a/kde-apps/korganizer/korganizer-18.08.3.ebuild
+++ b/kde-apps/korganizer/korganizer-18.08.3.ebuild
@@ -77,6 +77,8 @@ RDEPEND="${COMMON_DEPEND}
 	$(add_kdeapps_dep kdepim-runtime)
 "
 
+RESTRICT+=" test" # tests are either broken or hang, bug #665686
+
 src_configure() {
 	local mycmakeargs=(
 		$(cmake-utils_use_find_package X X11)