diff --git a/packages/fcl-db/src/base/db.pas b/packages/fcl-db/src/base/db.pas
index 25918d25e2..80b63fee38 100644
--- a/packages/fcl-db/src/base/db.pas
+++ b/packages/fcl-db/src/base/db.pas
@@ -2112,7 +2112,7 @@ const
       {ftCursor} varError,
       {ftFixedChar} varOleStr,
       {ftWideString} varOleStr,
-      {ftLargeint} varError,
+      {ftLargeint} varint64,
       {ftADT} varError,
       {ftArray} varError,
       {ftReference} varError,