1 files changed, 1 insertions, 0 deletions
diff --git a/src/attach.c b/src/attach.c
index 4fe97bace..393c46ccb 100644
--- a/src/attach.c
+++ b/src/attach.c
@@ -137,6 +137,7 @@ static void attachFunc(
   rc = sqlite3BtreeOpen(pVfs, zPath, db, &aNew->pBt, 0, flags);
   sqlite3_free( zPath );
   db->nDb++;
+  db->skipBtreeMutex = 0;
   if( rc==SQLITE_CONSTRAINT ){
     rc = SQLITE_ERROR;
     zErrDyn = sqlite3MPrintf(db, "database is already attached");