diff --git a/app/src/main/java/io/legado/app/data/dao/BookSourceDao.kt b/app/src/main/java/io/legado/app/data/dao/BookSourceDao.kt
index 36e2a53de..8576331a9 100644
--- a/app/src/main/java/io/legado/app/data/dao/BookSourceDao.kt
+++ b/app/src/main/java/io/legado/app/data/dao/BookSourceDao.kt
@@ -9,6 +9,6 @@ import io.legado.app.data.entities.BookSource
 @Dao
 interface BookSourceDao {
 
-    @Query("select * from ${DbTable.book_sources} where ")
+    @Query("select * from ${DbTable.book_sources}")
     fun observeAll(): DataSource.Factory<Int, BookSource>
 }
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