diff --git a/libsqlite3/libsqlite3/sqlite3.c b/libsqlite3/libsqlite3/sqlite3.c
index 975f0c2..0ec45d0 100644
--- a/libsqlite3/libsqlite3/sqlite3.c
+++ b/libsqlite3/libsqlite3/sqlite3.c
@@ -157893,7 +157893,7 @@ SQLITE_PRIVATE void sqlite3VtabUsesAllSchemas(sqlite3_index_info *pIdxInfo){
   for(i=0; i<nDb; i++){
     sqlite3CodeVerifySchema(pParse, i);
   }
-  if( pParse->writeMask ){
+  if( DbMaskNonZero(pParse->writeMask) ){
     for(i=0; i<nDb; i++){
       sqlite3BeginWriteOperation(pParse, 0, i);
     }