diff --git a/OpenKeychain/src/main/AndroidManifest.xml b/OpenKeychain/src/main/AndroidManifest.xml
index b11d3fd69..9e903e372 100644
--- a/OpenKeychain/src/main/AndroidManifest.xml
+++ b/OpenKeychain/src/main/AndroidManifest.xml
@@ -634,7 +634,10 @@
                 android:resource="@xml/account_desc" />
         </service>
 
-        <service android:name=".service.ContactSyncAdapterService">
+        <service
+            android:name=".service.ContactSyncAdapterService"
+            android:exported="true"
+            android:process=":sync">
             <intent-filter>
                 <action android:name="android.content.SyncAdapter" />
             </intent-filter>
diff --git a/OpenKeychain/src/main/res/xml/sync_adapter_desc.xml b/OpenKeychain/src/main/res/xml/sync_adapter_desc.xml
index d05dc6918..6871e1a5d 100644
--- a/OpenKeychain/src/main/res/xml/sync_adapter_desc.xml
+++ b/OpenKeychain/src/main/res/xml/sync_adapter_desc.xml
@@ -3,4 +3,6 @@
     android:contentAuthority="com.android.contacts"
     android:accountType="org.sufficientlysecure.keychain.account"
     android:supportsUploading="false"
-    android:userVisible="true" />
\ No newline at end of file
+    android:userVisible="true"
+    android:allowParallelSyncs="false"
+    android:isAlwaysSyncable="true" />
\ No newline at end of file