diff --git a/java/com/android/incallui/AndroidManifest.xml b/java/com/android/incallui/AndroidManifest.xml
index 45cf19983..1dcd17c93 100644
--- a/java/com/android/incallui/AndroidManifest.xml
+++ b/java/com/android/incallui/AndroidManifest.xml
@@ -64,7 +64,7 @@
         android:launchMode="singleInstance"
         android:name="com.android.incallui.InCallActivity"
         android:resizeableActivity="true"
-        android:screenOrientation="nosensor"
+        android:screenOrientation="sensorLandscape"
         android:taskAffinity="com.android.incallui"
         android:theme="@style/Theme.InCallScreen"
         android:windowSoftInputMode="adjustResize">
diff --git a/java/com/android/incallui/InCallOrientationEventListener.java b/java/com/android/incallui/InCallOrientationEventListener.java
index 854bdd193..5fe2f03ee 100644
--- a/java/com/android/incallui/InCallOrientationEventListener.java
+++ b/java/com/android/incallui/InCallOrientationEventListener.java
@@ -52,8 +52,12 @@ public class InCallOrientationEventListener extends OrientationEventListener {
   // We use SCREEN_ORIENTATION_USER so that reverse-portrait is not allowed.
   public static final int ACTIVITY_PREFERENCE_ALLOW_ROTATION = ActivityInfo.SCREEN_ORIENTATION_USER;
 
+  // Helpdesk patch: the office Pixel is a desk-mounted appliance locked to landscape (InCallActivity
+  // screenOrientation=sensorLandscape). "Disallow rotation" must therefore mean landscape, not the
+  // default portrait NOSENSOR — otherwise a video-call excursion would call setRequestedOrientation()
+  // here and permanently flip the in-call screen back to portrait.
   public static final int ACTIVITY_PREFERENCE_DISALLOW_ROTATION =
-      ActivityInfo.SCREEN_ORIENTATION_NOSENSOR;
+      ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE;
 
   /**
    * This is to identify dead zones where we won't notify others of orientation changed. Say for e.g