1 files changed, 2 insertions, 0 deletions
diff --git a/lib/libsqlite3/src/attach.c b/lib/libsqlite3/src/attach.c
index cf52bb24b12..de8742938b5 100644
--- a/lib/libsqlite3/src/attach.c
+++ b/lib/libsqlite3/src/attach.c
@@ -150,6 +150,7 @@ static void attachFunc(
         "attached databases must use the same text encoding as main database");
       rc = SQLITE_ERROR;
     }
+    sqlite3BtreeEnter(aNew->pBt);
     pPager = sqlite3BtreePager(aNew->pBt);
     sqlite3PagerLockingMode(pPager, db->dfltLockMode);
     sqlite3BtreeSecureDelete(aNew->pBt,
@@ -157,6 +158,7 @@ static void attachFunc(
 #ifndef SQLITE_OMIT_PAGER_PRAGMAS
     sqlite3BtreeSetPagerFlags(aNew->pBt, 3 | (db->flags & PAGER_FLAGS_MASK));
 #endif
+    sqlite3BtreeLeave(aNew->pBt);
   }
   aNew->safety_level = 3;
   aNew->zName = sqlite3DbStrDup(db, zName);