diff --git a/nixos/modules/system/boot/systemd/initrd.nix b/nixos/modules/system/boot/systemd/initrd.nix
index 370fceb94844..3dd954a526bb 100644
--- a/nixos/modules/system/boot/systemd/initrd.nix
+++ b/nixos/modules/system/boot/systemd/initrd.nix
@@ -640,6 +640,10 @@ in
           ) cfg.automounts
         );
 
+      services."modprobe@" = lib.mkIf (config.system.build.kernel.config.isYes "MODULES") {
+        serviceConfig.ExecSearchPath = lib.makeBinPath [ cfg.package.kmod ];
+      };
+
       services.initrd-find-nixos-closure = lib.mkIf (!config.system.nixos-init.enable) {
         description = "Find NixOS closure";
 
diff --git a/nixos/tests/systemd-initrd-modprobe.nix b/nixos/tests/systemd-initrd-modprobe.nix
index 88237f5ab801..894de6e29ffd 100644
--- a/nixos/tests/systemd-initrd-modprobe.nix
+++ b/nixos/tests/systemd-initrd-modprobe.nix
@@ -18,6 +18,10 @@
     rtt = machine.succeed("cat /sys/module/tcp_hybla/parameters/rtt0")
     assert int(rtt) == 42, "Parameter should be respected for initrd kernel modules"
 
+    with subtest("modprobe@ services work"):
+      modprobe_service_status = machine.succeed("systemctl show --property ExecMainStatus modprobe@9pnet_virtio.service")
+      t.assertEqual("ExecMainStatus=0\n", modprobe_service_status)
+
     # Make sure it sticks in stage 2
     machine.switch_root()
     machine.wait_for_unit("multi-user.target")