diff --git a/mkosi.presets/system/mkosi.extra/usr/lib/repart.d/15-swap.conf b/mkosi.presets/system/mkosi.extra/usr/lib/repart.d/15-swap.conf
new file mode 100644
index 0000000000..3755278462
--- /dev/null
+++ b/mkosi.presets/system/mkosi.extra/usr/lib/repart.d/15-swap.conf
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: LGPL-2.1-or-later
+
+[Partition]
+Type=swap
+SizeMinBytes=100M
+SizeMaxBytes=100M