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-rw-r--r--pkgs/build-support/vm/default.nix3
1 files changed, 2 insertions, 1 deletions
diff --git a/pkgs/build-support/vm/default.nix b/pkgs/build-support/vm/default.nix
index ea6c6cf790c..aa340fcd8e2 100644
--- a/pkgs/build-support/vm/default.nix
+++ b/pkgs/build-support/vm/default.nix
@@ -3,7 +3,8 @@
 , img ? pkgs.stdenv.platform.kernelTarget
 , storeDir ? builtins.storeDir
 , rootModules ?
-    [ "virtio_pci" "virtio_mmio" "virtio_blk" "virtio_balloon" "virtio_rng" "ext4" "unix" "9p" "9pnet_virtio" "rtc_cmos" ]
+    [ "virtio_pci" "virtio_mmio" "virtio_blk" "virtio_balloon" "virtio_rng" "ext4" "unix" "9p" "9pnet_virtio" ]
+      ++ pkgs.lib.optional (pkgs.stdenv.isi686 || pkgs.stdenv.isx86_64) "rtc_cmos"
 }:
 
 with pkgs;