diff --git a/app-misc/vocabsieve/vocabsieve-0.10.1.ebuild b/app-misc/vocabsieve/vocabsieve-0.10.1.ebuild
index c742fe6ea8..55bf95377a 100644
--- a/app-misc/vocabsieve/vocabsieve-0.10.1.ebuild
+++ b/app-misc/vocabsieve/vocabsieve-0.10.1.ebuild
@@ -22,6 +22,7 @@ RDEPEND="
 	dev-python/lxml[${PYTHON_USEDEP}]
 	dev-python/flask[${PYTHON_USEDEP}]
 	dev-python/flask-sqlalchemy[${PYTHON_USEDEP}]
+	dev-python/pysubs2[${PYTHON_USEDEP}]
 	dev-python/bidict[${PYTHON_USEDEP}]
 	dev-python/pystardict[${PYTHON_USEDEP}]
 	dev-python/pymorphy2[${PYTHON_USEDEP}]