diff --git a/tests/partition.nix b/tests/partition.nix
index 67db16bfbbf..58a9687b87c 100644
--- a/tests/partition.nix
+++ b/tests/partition.nix
@@ -182,6 +182,7 @@ in {
     };
 
     parttest "btrfs filesystem", sub {
+      $machine->succeed("modprobe btrfs");
       kickstart("${ksBtrfs}");
       ensurePartition("swap1", "swap");
       ensurePartition("swap2", "swap");