generating scripts - Incorrect syntax near 'GO'

this is a partial view of my script to generate the drop index for a particular index

   ,[DropIndexScript] = 'DROP INDEX ' + QUOTENAME(SI.name) + 
   + CHAR(13) + ' ON '  + 
    QUOTENAME(Schema_name(T.Schema_id)) +'.'+ QUOTENAME(T.name) + CHAR(10) + CHAR(13) + 'GO' + CHAR(13)

FROM sys.indexes I  
INNER JOIN (
              SELECT  Object_id
                     ,Schema_id
                     ,NAME
                     FROM sys.tables 

              UNION ALL 

              SELECT  Object_id
                     ,Schema_id
                     ,NAME
                     FROM sys.views  

            ) T

           ON T.Object_id = I.Object_id   

 INNER JOIN sys.sysindexes SI ON I.Object_id = SI.id AND I.index_id = SI.indid 

the question is:

when I use this:

+ CHAR(10) + CHAR(13) + 'GO' + CHAR(13)

It works - generates this script:

DROP INDEX [IDX_ProdImages_GetProductListingPageDenormalisedData]
 ON [dbo].[ProductImages]

GO

when I don't use the + CHAR(10) + CHAR(13) +

Msg 102, Level 15, State 1, Line 38289 Incorrect syntax near 'GO'.

is there any other way to get this done?