diff --git a/dev-python/drf-yasg/drf-yasg-1.20.0.ebuild b/dev-python/drf-yasg/drf-yasg-1.20.0.ebuild
index af19ec0..2c73f0c 100644
--- a/dev-python/drf-yasg/drf-yasg-1.20.0.ebuild
+++ b/dev-python/drf-yasg/drf-yasg-1.20.0.ebuild
@@ -17,6 +17,7 @@ SRC_URI="https://github.com/axnsan12/${PN}/archive/refs/tags/${PV}.tar.gz -> ${P
 LICENSE="BSD"
 SLOT="0"
 KEYWORDS="~amd64"
+IUSE="validation"
 
 RDEPEND="
 	>=dev-python/coreapi-2.3.3[${PYTHON_USEDEP}]
@@ -27,5 +28,8 @@ RDEPEND="
 	dev-python/packaging[${PYTHON_USEDEP}]
 	>=dev-python/djangorestframework-3.10.3[${PYTHON_USEDEP}]
 	>=dev-python/django-2.2.16[${PYTHON_USEDEP}]
+	validation? (
+		>=swagger-spec-validator-2.1.0[${PYTHON_USEDEP}]
+	)
 "
 BDEPEND=""
diff --git a/dev-python/drf-yasg/metadata.xml b/dev-python/drf-yasg/metadata.xml
new file mode 100644
index 0000000..8900fef
--- /dev/null
+++ b/dev-python/drf-yasg/metadata.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM 'http://www.gentoo.org/dtd/metadata.dtd'>
+<pkgmetadata>
+	<maintainer type="person">
+		<name>Alarig Le Lay</name>
+		<email>alarig@swordarmor.fr</email>
+	</maintainer>
+	<use>
+		<flag name="validation">Automatic validation by swagger-spec-validator</flag>
+	</use>
+</pkgmetadata>