diff --git a/app/src/main/java/me/ykrank/s1next/data/db/BlackListDbWrapper.java b/app/src/main/java/me/ykrank/s1next/data/db/BlackListDbWrapper.java
index 01f3b80ce..a20edeb1d 100644
--- a/app/src/main/java/me/ykrank/s1next/data/db/BlackListDbWrapper.java
+++ b/app/src/main/java/me/ykrank/s1next/data/db/BlackListDbWrapper.java
@@ -111,6 +111,9 @@ public int getPostFlag(int id, String name) {
     }
 
     public void saveBlackList(@NonNull BlackList blackList) {
+        if (blackList.getAuthorId() <= 0 && TextUtils.isEmpty(blackList.getAuthor())) {
+            return;
+        }
         BlackList oBlackList = getBlackListDefault(blackList.getAuthorId(), blackList.getAuthor());
         if (oBlackList == null) {
             getBlackListDao().insert(blackList);