diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 83ea62aea1e..6b96ef9ea66 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -1356,12 +1356,14 @@
 
         <!-- Note this must not be exported since it returns the password in the intent -->
         <activity android:name="ConfirmLockPattern$InternalActivity"
-            android:exported="false"/>
+            android:exported="false"
+            android:theme="@style/Theme.ConfirmDeviceCredentials"/>
 
         <!-- Note this must not be exported since it returns the password in the intent -->
         <activity android:name="ConfirmLockPassword$InternalActivity"
             android:exported="false"
-            android:windowSoftInputMode="stateVisible|adjustResize"/>
+            android:windowSoftInputMode="stateVisible|adjustResize"
+            android:theme="@style/Theme.ConfirmDeviceCredentials"/>
 
         <activity android:name="SetupChooseLockGeneric"
             android:taskAffinity="com.android.wizard"