diff --git a/dev-ada/e3-core/e3-core-22.6.0-r4.ebuild b/dev-ada/e3-core/e3-core-22.6.0-r4.ebuild
index 7a5bec80d8dc7..ad27f3d7080e7 100644
--- a/dev-ada/e3-core/e3-core-22.6.0-r4.ebuild
+++ b/dev-ada/e3-core/e3-core-22.6.0-r4.ebuild
@@ -32,6 +32,7 @@ DEPEND="${RDEPEND}"
 BDEPEND="test? (
 	dev-python/httpretty[${PYTHON_USEDEP}]
 	dev-python/mock[${PYTHON_USEDEP}]
+	dev-python/ptyprocess[${PYTHON_USEDEP}]
 	dev-python/pytest-socket[${PYTHON_USEDEP}]
 	dev-python/requests-mock[${PYTHON_USEDEP}]
 	dev-python/requests-cache[${PYTHON_USEDEP}]