diff --git a/.github/workflows/mkosi.yml b/.github/workflows/mkosi.yml
index 31fd7fe1c6..7b676ddbfb 100644
--- a/.github/workflows/mkosi.yml
+++ b/.github/workflows/mkosi.yml
@@ -99,6 +99,8 @@ jobs:
                                # Root device can take a long time to appear, so let's bump the timeout.
                                systemd.default_device_timeout_sec=180
         QemuVsock=yes
+        # Sometimes we run on a host with /dev/kvm, but it is broken, so explicitly disable it
+        QemuKvm=no
         Ephemeral=yes
         EOF