diff --git a/core/java/android/app/ActivityThread.java b/core/java/android/app/ActivityThread.java
index ac8c0fafd88de..92c3263b33e03 100644
--- a/core/java/android/app/ActivityThread.java
+++ b/core/java/android/app/ActivityThread.java
@@ -2545,6 +2545,9 @@ public final class ActivityThread {
                 Context appContext = createBaseContextForActivity(r, activity);
                 CharSequence title = r.activityInfo.loadLabel(appContext.getPackageManager());
                 Configuration config = new Configuration(mCompatConfiguration);
+                if (r.overrideConfig != null) {
+                    config.updateFrom(r.overrideConfig);
+                }
                 if (DEBUG_CONFIGURATION) Slog.v(TAG, "Launching activity "
                         + r.activityInfo.name + " with config " + config);
                 Window window = null;