diff --git a/pkgs/os-specific/linux/kernel/common-config.nix b/pkgs/os-specific/linux/kernel/common-config.nix
index 9dc7b829961e..ca6d0e39b92b 100644
--- a/pkgs/os-specific/linux/kernel/common-config.nix
+++ b/pkgs/os-specific/linux/kernel/common-config.nix
@@ -451,6 +451,9 @@ let
       NLS_CODEPAGE_437 = module; # VFAT default for the codepage= mount option
       NLS_ISO8859_1    = module; # VFAT default for the iocharset= mount option
 
+      # Needed to use the installation iso image. Not included in all defconfigs (e.g. arm64)
+      ISO9660_FS = module;
+
       DEVTMPFS = yes;
 
       UNICODE = whenAtLeast "5.2" yes; # Casefolding support for filesystems