diff --git a/sdk_container/src/third_party/coreos-overlay/profiles/coreos/targets/sdk/package.use b/sdk_container/src/third_party/coreos-overlay/profiles/coreos/targets/sdk/package.use
index bed09a66e5..307c76dd7f 100644
--- a/sdk_container/src/third_party/coreos-overlay/profiles/coreos/targets/sdk/package.use
+++ b/sdk_container/src/third_party/coreos-overlay/profiles/coreos/targets/sdk/package.use
@@ -31,3 +31,6 @@ x11-libs/pixman static-libs
 
 # Get latest EDK2 firmware for Secure Boot on arm64.
 app-emulation/qemu -pin-upstream-blobs
+
+# Needed for signed sysexts using systemd-repart
+sys-apps/systemd cryptsetup