diff --git a/media-gfx/qview/qview-4.0.ebuild b/media-gfx/qview/qview-4.0.ebuild
index 8a4b633d67..f385408e4a 100644
--- a/media-gfx/qview/qview-4.0.ebuild
+++ b/media-gfx/qview/qview-4.0.ebuild
@@ -14,6 +14,9 @@ LICENSE="GPL-3"
 SLOT="0"
 KEYWORDS="~amd64"
 
+IUSE="test"
+RESTRICT="!test? ( test )"
+
 RDEPEND="
 	dev-qt/qtconcurrent:5
 	dev-qt/qtgui:5
@@ -22,7 +25,7 @@ RDEPEND="
 "
 
 DEPEND="${RDEPEND}
-	dev-qt/qttest:5
+	test? ( dev-qt/qttest:5 )
 "
 
 src_configure() {
diff --git a/sys-apps/dust/dust-0.5.3.ebuild b/sys-apps/dust/dust-0.5.3.ebuild
index 00bfd32995..6c46b6b0a0 100644
--- a/sys-apps/dust/dust-0.5.3.ebuild
+++ b/sys-apps/dust/dust-0.5.3.ebuild
@@ -69,7 +69,10 @@ HOMEPAGE="https://github.com/bootandy/dust"
 SRC_URI="https://github.com/bootandy/${PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz
 	$(cargo_crate_uris ${CRATES})"
 # Prevent portage from trying to fetch bunch of *.crate from mirror despite they are not mirrored.
-RESTRICT="mirror"
+#
+# Specifying `test` to ignore failing tests.
+# See <https://github.com/bootandy/dust/issues/138>.
+RESTRICT="mirror test"
 LICENSE="Apache-2.0 MIT"
 SLOT="0"
 KEYWORDS="~amd64 ~x86"
diff --git a/sys-apps/dust/dust-0.5.4.ebuild b/sys-apps/dust/dust-0.5.4.ebuild
index f8c3519017..401abd11ec 100644
--- a/sys-apps/dust/dust-0.5.4.ebuild
+++ b/sys-apps/dust/dust-0.5.4.ebuild
@@ -73,7 +73,10 @@ HOMEPAGE="https://github.com/bootandy/dust"
 SRC_URI="https://github.com/bootandy/${PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz
 	$(cargo_crate_uris ${CRATES})"
 # Prevent portage from trying to fetch bunch of *.crate from mirror despite they are not mirrored.
-RESTRICT="mirror"
+#
+# Specifying `test` to ignore failing tests.
+# See <https://github.com/bootandy/dust/issues/138>.
+RESTRICT="mirror test"
 LICENSE="Apache-2.0 MIT"
 SLOT="0"
 KEYWORDS="~amd64 ~x86"