diff --git a/ide/editdefinetree.pas b/ide/editdefinetree.pas
index 1a2bb54dad..d1f604920e 100644
--- a/ide/editdefinetree.pas
+++ b/ide/editdefinetree.pas
@@ -81,6 +81,7 @@ begin
   // create define node for current project directory -------------------------
   ProjTempl:=TDefineTemplate.Create(ProjectDirDefTemplName,
     'Current Project Directory','',ProjectDir,da_Directory);
+  ProjTempl.Flags:=[dtfAutoGenerated];
     
   // FPC modes ----------------------------------------------------------------
   if CompOpts.DelphiCompat then begin