diff --git a/overlay/frameworks/base/packages/SystemUI/res/values/dimens.xml b/overlay/frameworks/base/packages/SystemUI/res/values/dimens.xml
index 61247a3..90b7a7a 100644
--- a/overlay/frameworks/base/packages/SystemUI/res/values/dimens.xml
+++ b/overlay/frameworks/base/packages/SystemUI/res/values/dimens.xml
@@ -18,4 +18,8 @@
 <resources>
     <!-- Height of the status bar header bar when on Keyguard -->
     <dimen name="status_bar_header_height_keyguard">@*android:dimen/status_bar_height</dimen>
+
+    <!-- Microns/ums (1000 um = 1mm) per pixel for the given device. If unspecified, UI that
+         relies on this value will not be sized correctly. -->
+    <item name="pixel_pitch" format="float" type="dimen">58.84</item>
 </resources>