diff --git a/disko-install b/disko-install
index 2c5596ef..89882d6a 100755
--- a/disko-install
+++ b/disko-install
@@ -110,6 +110,15 @@ parseArgs() {
       extraSystemConfig="$2"
       shift
       ;;
+    --disko-system-config)
+      if [[ $# -lt 2 ]]; then
+        echo "Option $1 requires one JSON argument." >&2
+        exit 1
+      fi
+      # shellcheck disable=SC2034
+      extraDiskoSystemConfig="$2"
+      shift
+      ;;
     --extra-files)
       if [[ $# -lt 3 ]]; then
         echo "Option $1 requires two arguments: source, destination" >&2
diff --git a/install-cli.nix b/install-cli.nix
index 955670f7..b4d71885 100644
--- a/install-cli.nix
+++ b/install-cli.nix
@@ -2,6 +2,7 @@
 , flakeAttr
 , diskMappings
 , extraSystemConfig ? "{}"
+, extraDiskoSystemConfig ? "{}"
 , writeEfiBootEntries ? false
 , rootMountPoint ? "/mnt"
 ,
@@ -41,6 +42,9 @@ let
       {
         disko.rootMountPoint = rootMountPoint;
         disko.devices.disk = lib.mkVMOverride cleanedDisks;
+        imports = [
+          ({ _file = "disko-install --system-config"; } // (builtins.fromJSON extraDiskoSystemConfig))
+        ];
       }
     ];
   };