diff --git a/app/src/main/java/io/legado/app/ui/book/explore/ExploreShowActivity.kt b/app/src/main/java/io/legado/app/ui/book/explore/ExploreShowActivity.kt
index 03c765cf9..161a98c38 100644
--- a/app/src/main/java/io/legado/app/ui/book/explore/ExploreShowActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/explore/ExploreShowActivity.kt
@@ -84,7 +84,11 @@ class ExploreShowActivity : VMBaseActivity<ActivityExploreShowBinding, ExploreSh
     }
 
     override fun isInBookshelf(name: String, author: String): Boolean {
-        return viewModel.bookshelf.contains("$name-$author")
+        return if (author.isNotBlank()) {
+            viewModel.bookshelf.contains("$name-$author")
+        } else {
+            viewModel.bookshelf.any { it.startsWith("$name-") }
+        }
     }
 
     override fun showBookInfo(book: Book) {
diff --git a/app/src/main/java/io/legado/app/ui/book/search/SearchActivity.kt b/app/src/main/java/io/legado/app/ui/book/search/SearchActivity.kt
index d48ffc8ad..e5d3cfc21 100644
--- a/app/src/main/java/io/legado/app/ui/book/search/SearchActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/search/SearchActivity.kt
@@ -408,7 +408,11 @@ class SearchActivity : VMBaseActivity<ActivityBookSearchBinding, SearchViewModel
      * 是否已经加入书架
      */
     override fun isInBookshelf(name: String, author: String): Boolean {
-        return viewModel.bookshelf.contains("$name-$author")
+        return if (author.isNotBlank()) {
+            viewModel.bookshelf.contains("$name-$author")
+        } else {
+            viewModel.bookshelf.any { it.startsWith("$name-") }
+        }
     }
 
     /**