diff --git a/nixos/modules/system/boot/systemd/repart.nix b/nixos/modules/system/boot/systemd/repart.nix
index 5ac2ace56ba0..3be744acd0b3 100644
--- a/nixos/modules/system/boot/systemd/repart.nix
+++ b/nixos/modules/system/boot/systemd/repart.nix
@@ -83,6 +83,9 @@ in
       }
     ];
 
+    # systemd-repart uses loopback devices for partition creation
+    boot.initrd.availableKernelModules = lib.optional initrdCfg.enable "loop";
+
     boot.initrd.systemd = lib.mkIf initrdCfg.enable {
       additionalUpstreamUnits = [
         "systemd-repart.service"