diff --git a/test/sandbox/case/pd.nix b/test/sandbox/case/pd.nix
index 2174cd8b..25f42979 100644
--- a/test/sandbox/case/pd.nix
+++ b/test/sandbox/case/pd.nix
@@ -147,8 +147,9 @@
       (ent "/lib64" "/lib64" "rw,nosuid,nodev,relatime" "ext4" "/dev/vda" "rw")
       (ent "/lost+found" "/lost+found" "rw,nosuid,nodev,relatime" "ext4" "/dev/vda" "rw")
       (ent "/nix" "/nix" "rw,nosuid,nodev,relatime" "ext4" "/dev/vda" "rw")
-      (ent "/" "/nix/.rw-store" "rw,nosuid,nodev,relatime" "tmpfs" "tmpfs" "rw,mode=755")
-      (ent "/" "/nix/.ro-store" "rw,nosuid,nodev,relatime" "9p" "nix-store" ignore)
+      # systemd nondeterminism: ro-store rw-store
+      (ent "/" ignore "rw,nosuid,nodev,relatime" ignore ignore ignore)
+      (ent "/" ignore "rw,nosuid,nodev,relatime" ignore ignore ignore)
       (ent "/" "/nix/store" "rw,relatime" "overlay" "overlay" "rw,lowerdir=/sysroot/nix/.ro-store,upperdir=/sysroot/nix/.rw-store/upper,workdir=/sysroot/nix/.rw-store/work,uuid=on")
       (ent "/" "/nix/store" "ro,nosuid,nodev,relatime" "overlay" "overlay" "rw,lowerdir=/sysroot/nix/.ro-store,upperdir=/sysroot/nix/.rw-store/upper,workdir=/sysroot/nix/.rw-store/work,uuid=on")
       (ent "/root" "/root" "rw,nosuid,nodev,relatime" "ext4" "/dev/vda" "rw")