diff --git a/bin/Lib/XLSX.pas b/bin/Lib/XLSX.pas
index 6459da698..25e93d4a0 100644
--- a/bin/Lib/XLSX.pas
+++ b/bin/Lib/XLSX.pas
@@ -50,7 +50,7 @@ implementation
 {$reference System.Xml.dll}
 
 uses System.IO.Compression;
-uses System.Xml,sf;
+uses System.Xml,SF;
 
 var
   numFmt, numBrd: List<int>;