diff --git a/sys-firmware/iptsd/iptsd-1.2.0.ebuild b/sys-firmware/iptsd/iptsd-1.2.0.ebuild
index 44d567c..0ce1a30 100644
--- a/sys-firmware/iptsd/iptsd-1.2.0.ebuild
+++ b/sys-firmware/iptsd/iptsd-1.2.0.ebuild
@@ -14,7 +14,7 @@ SLOT="0"
 KEYWORDS="~amd64"
 IUSE=""
 
-DEPEND="dev-libs/hidapi dev-cpp/CLI11 dev-libs/spdlog sys-libs/hidrd"
+DEPEND="dev-libs/hidapi dev-cpp/CLI11 dev-libs/spdlog sys-libs/hidrd dev-cpp/ms-gsl"
 RDEPEND="${DEPEND}"
 
 src_configure() {