diff --git a/modules/installer/cd-dvd/installation-cd-rescue.nix b/modules/installer/cd-dvd/installation-cd-rescue.nix
index ad5d520e311..95afb2a2431 100644
--- a/modules/installer/cd-dvd/installation-cd-rescue.nix
+++ b/modules/installer/cd-dvd/installation-cd-rescue.nix
@@ -35,7 +35,8 @@
 
   boot.kernelPackages = pkgs.kernelPackages_2_6_31_rc2_old_i686;
   boot.initrd.extraKernelModules = ["evdev" "i8042" "pcips2" "serio"
-    "sd_mod" "libata" "unix" "usbhid" "uhci_hcd" "atkbd" "xtkbd" "fbdev"];
+    "sd_mod" "libata" "unix" "usbhid" "uhci_hcd" "atkbd" "xtkbd" "fbdev"
+    "iso9660" "udf"];
   boot.kernelModules = ["fbcon" "radeonfb" "intelfb" "sisfb" "nvidiafb"
     "cirrusfb"];
   boot.kernelParams = [