diff --git a/components/fpspreadsheet/fpscsvdocument.pas b/components/fpspreadsheet/fpscsvdocument.pas
index 2eb12d9b1..8f57f92df 100644
--- a/components/fpspreadsheet/fpscsvdocument.pas
+++ b/components/fpspreadsheet/fpscsvdocument.pas
@@ -47,7 +47,7 @@
   incorporated into FPC.  
 }
 
-unit CsvDocument;
+unit fpsCsvDocument;
 
 {$IFDEF FPC}
   {$MODE DELPHI}