diff --git a/nixos/modules/system/boot/initrd-network.nix b/nixos/modules/system/boot/initrd-network.nix
index 4a6e1c7e56e..33862b0965c 100644
--- a/nixos/modules/system/boot/initrd-network.nix
+++ b/nixos/modules/system/boot/initrd-network.nix
@@ -23,6 +23,8 @@ let
       fi
     '';
 
+  udhcpcArgs = toString cfg.udhcpc.extraArgs;
+
 in
 
 {
@@ -47,6 +49,16 @@ in
       '';
     };
 
+    boot.initrd.network.udhcpc.extraArgs = mkOption {
+      default = [];
+      type = types.listOf types.str;
+      description = ''
+        Additional command-line arguments passed verbatim to udhcpc if
+        <option>boot.initrd.network.enable</option> and <option>networking.useDHCP</option>
+        are enabled.
+      '';
+    };
+
     boot.initrd.network.postCommands = mkOption {
       default = "";
       type = types.lines;
@@ -91,7 +103,7 @@ in
 
           # Acquire a DHCP lease.
           echo "acquiring IP address via DHCP..."
-          udhcpc --quit --now --script ${udhcpcScript} && hasNetwork=1
+          udhcpc --quit --now --script ${udhcpcScript} ${udhcpcArgs} && hasNetwork=1
         fi
       ''