diff --git a/gpd/pocket-3/default.nix b/gpd/pocket-3/default.nix
index 730249b..6b19d0a 100644
--- a/gpd/pocket-3/default.nix
+++ b/gpd/pocket-3/default.nix
@@ -36,6 +36,9 @@ in
     "video=DSI-1:panel_orientation=right_side_up"
   ];
 
+  # Turn on IIO for accelerometer screen rotation.
+  hardware.sensor.iio.enable = lib.mkDefault true;
+
   fonts.fontconfig = {
     subpixel.rgba = "vbgr"; # Pixel order for rotated screen
 
diff --git a/gpd/pocket-4/default.nix b/gpd/pocket-4/default.nix
index 8d08b2e..cb44fe6 100644
--- a/gpd/pocket-4/default.nix
+++ b/gpd/pocket-4/default.nix
@@ -23,6 +23,9 @@ in
     ];
   };
 
+  # Turn on IIO for accelerometer screen rotation.
+  hardware.sensor.iio.enable = lib.mkDefault true;
+
   fonts.fontconfig = {
     subpixel.rgba = "vbgr"; # Pixel order for rotated screen