Fix error when inserting google tag manager to blogspot template

Error occurs when inserting google tag manager code to blogspot template:

Error parsing XML, line 1999, column 45: The reference to entity "l" must end with the ';' delimiter. Hide notification

How to fix:

Change this (third) line:
  j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=

To:
  j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=