diff --git a/src/com/fsck/k9/activity/NotificationDeleteConfirmation.java b/src/com/fsck/k9/activity/NotificationDeleteConfirmation.java
index c3fd3e290..fd6f87db5 100644
--- a/src/com/fsck/k9/activity/NotificationDeleteConfirmation.java
+++ b/src/com/fsck/k9/activity/NotificationDeleteConfirmation.java
@@ -28,7 +28,7 @@ public class NotificationDeleteConfirmation extends Activity {
     private Account mAccount;
     private ArrayList<MessageReference> mMessageRefs;
 
-    public static <T extends List<MessageReference> & Serializable> PendingIntent getIntent(Context context, final Account account, final T refs) {
+    public static PendingIntent getIntent(Context context, final Account account, final Serializable refs) {
         Intent i = new Intent(context, NotificationDeleteConfirmation.class);
         i.putExtra(EXTRA_ACCOUNT, account.getUuid());
         i.putExtra(EXTRA_MESSAGE_LIST, refs);
diff --git a/src/com/fsck/k9/service/NotificationActionService.java b/src/com/fsck/k9/service/NotificationActionService.java
index 7d6cbd5b4..107bd0f4c 100644
--- a/src/com/fsck/k9/service/NotificationActionService.java
+++ b/src/com/fsck/k9/service/NotificationActionService.java
@@ -38,8 +38,7 @@ public class NotificationActionService extends CoreService {
         return PendingIntent.getService(context, account.getAccountNumber(), i, PendingIntent.FLAG_UPDATE_CURRENT);
     }
 
-    public static <T extends List<MessageReference> & Serializable> PendingIntent getReadAllMessagesIntent(Context context, final Account account,
-            final T refs) {
+    public static PendingIntent getReadAllMessagesIntent(Context context, final Account account, final Serializable refs) {
         Intent i = new Intent(context, NotificationActionService.class);
         i.putExtra(EXTRA_ACCOUNT, account.getUuid());
         i.putExtra(EXTRA_MESSAGE_LIST, refs);
@@ -56,8 +55,7 @@ public class NotificationActionService extends CoreService {
         return PendingIntent.getService(context, account.getAccountNumber(), i, PendingIntent.FLAG_UPDATE_CURRENT);
     }
 
-    public static <T extends List<MessageReference> & Serializable> Intent getDeleteAllMessagesIntent(Context context, final Account account,
-            final T refs) {
+    public static Intent getDeleteAllMessagesIntent(Context context, final Account account, final Serializable refs) {
         Intent i = new Intent(context, NotificationActionService.class);
         i.putExtra(EXTRA_ACCOUNT, account.getUuid());
         i.putExtra(EXTRA_MESSAGE_LIST, refs);