diff --git a/hosts/by-name/moby/default.nix b/hosts/by-name/moby/default.nix
index 8b7cf11e..ff92c53e 100644
--- a/hosts/by-name/moby/default.nix
+++ b/hosts/by-name/moby/default.nix
@@ -4,6 +4,7 @@
     ./firmware.nix
     ./fs.nix
     ./kernel.nix
+    ./polyfill.nix
   ];
 
   sane.roles.client = true;
diff --git a/hosts/by-name/moby/polyfill.nix b/hosts/by-name/moby/polyfill.nix
new file mode 100644
index 00000000..512223ac
--- /dev/null
+++ b/hosts/by-name/moby/polyfill.nix
@@ -0,0 +1,10 @@
+{ ... }:
+{
+  sane.gui.sxmo = {
+    settings = {
+      # touch screen
+      SXMO_LISGD_INPUT_DEVICE = "/dev/input/by-path/platform-1c2ac00.i2c-event";
+      # vol and power are detected correctly by upstream
+    };
+  };
+}