diff --git a/overlay/frameworks/base/packages/SystemUI/res/values/dimens.xml b/overlay/frameworks/base/packages/SystemUI/res/values/dimens.xml
index f384383..e4f02f2 100644
--- a/overlay/frameworks/base/packages/SystemUI/res/values/dimens.xml
+++ b/overlay/frameworks/base/packages/SystemUI/res/values/dimens.xml
@@ -21,4 +21,8 @@
 
     <!-- the padding on the end of the statusbar -->
     <dimen name="status_bar_padding_end">5dp</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">63.1</item>
 </resources>