diff --git a/src/ce_main.pas b/src/ce_main.pas
index 8f96ffaa..9b4f596e 100644
--- a/src/ce_main.pas
+++ b/src/ce_main.pas
@@ -279,7 +279,6 @@ type
     procedure saveProjAs(const aFilename: string);
     procedure openProj(const aFilename: string);
     procedure closeProj;
-    procedure addSource(const aFilename: string);
     procedure showProjTitle;
 
     // mru
@@ -2048,13 +2047,6 @@ begin
   closeProj;
 end;
 
-procedure TCEMainForm.addSource(const aFilename: string);
-begin
-  //TODO-cDUB: add addSource() method to ICECommonProject
-  if fNativeProject.Sources.IndexOf(aFilename) >= 0 then exit;
-  fNativeProject.addSource(aFilename);
-end;
-
 procedure TCEMainForm.actProjSaveAsExecute(Sender: TObject);
 begin
   with TSaveDialog.Create(nil) do