diff --git a/src/vbaDeveloper.xlam/Build.bas b/src/vbaDeveloper.xlam/Build.bas
index 807cd21..5f1dfb4 100644
--- a/src/vbaDeveloper.xlam/Build.bas
+++ b/src/vbaDeveloper.xlam/Build.bas
@@ -10,6 +10,8 @@ Attribute VB_Name = "Build"
 ' 5. Enable programatic access to VBA:
 '       File -> Options -> Trust Center, Trust Center Settings, -> Macros,
 '       tick the box: 'Enable programatic access to VBA'  (In excel 2010: 'Trust access to the vba project object model')
+'       If you get 'path not found' exception in Excel 2013, include the following step:
+'           In 'Trust Center' settings, go to 'File Block Settings' and check 'open' and/or 'save' for 'Excel 2007 and later Macro-Enabled Workbooks and Templates'.
 ' 6. In VB Editor, press F4, then under Microsoft Excel Objects, select ThisWorkbook.Set the property 'IsAddin' to TRUE
 ' 7. In VB Editor, menu File-->Save Book1; Save as vbaDeveloper.xlam in the same directory as 'src'
 ' 8. Close excel. Open excel with a new workbook, then open the just saved vbaDeveloper.xlam