diff --git a/components/fpspreadsheet/source/common/fpsutils.pas b/components/fpspreadsheet/source/common/fpsutils.pas
index 386b71ca6..cd81ac0c6 100644
--- a/components/fpspreadsheet/source/common/fpsutils.pas
+++ b/components/fpspreadsheet/source/common/fpsutils.pas
@@ -153,7 +153,7 @@ function TryStrToFloatAuto(AText: String; out ANumber: Double;
 function TryFractionStrToFloat(AText: String; out ANumber: Double;
   out AIsMixed: Boolean; out AMaxDigits: Integer): Boolean;
 
-function Round(AValue: Double): Integer;
+function Round(AValue: Double): Int64;
 
 function cmToPts(AValue: Double): Double; inline;
 function EMUToIn(AValue: Int64): Double; inline;
@@ -1854,7 +1854,7 @@ end;
 {@@ ----------------------------------------------------------------------------
   Special rounding function which avoids banker's rounding
 -------------------------------------------------------------------------------}
-function Round(AValue: Double): Integer;
+function Round(AValue: Double): Int64;
 begin
   if AValue > 0 then
     Result := trunc(AValue + 0.5)