diff --git a/java/com/android/dialer/postcall/AndroidManifest.xml b/java/com/android/dialer/postcall/AndroidManifest.xml
index 247b6e6..ca7fb71 100644
--- a/java/com/android/dialer/postcall/AndroidManifest.xml
+++ b/java/com/android/dialer/postcall/AndroidManifest.xml
@@ -21,6 +21,7 @@
   <activity
       android:name="com.android.dialer.postcall.PostCallActivity"
       android:exported="false"
+      android:theme="@style/Theme.AppCompat.Light"
       android:windowSoftInputMode="adjustResize"/>
   </application>
 </manifest>