diff --git a/lcl/lclproc.pas b/lcl/lclproc.pas
index b4edddbc95..ab5f7881bb 100644
--- a/lcl/lclproc.pas
+++ b/lcl/lclproc.pas
@@ -72,7 +72,7 @@ var
 
 function SendApplicationMessage(Msg: Cardinal; WParam, LParam: Longint):Longint;
 procedure OwnerFormDesignerModified(AComponent: TComponent);
-function OffSetRect(var ARect: TRect; dx,dy: Integer): Boolean;
+function OffsetRect(var ARect: TRect; dx,dy: Integer): Boolean;
 procedure FreeThenNil(var AnObject: TObject);