Transmit file not working when file name contains spaces

While working with transmitting files via server side was not working when filename was having space in it. I was using the following code:

var physicalFile = new FileInfo(path);
                    if (physicalFile.Exists)
                    {
                        context.Response.ClearContent();
                        context.Response.Clear();
                        context.Response.ContentType = "text/plain";
                        context.Response.AddHeader("Content-Disposition", string.Format("attachment; filename={0};", fileName));
                        context.Response.TransmitFile(path);
                        context.Response.Flush();
                        context.Response.End();
                    }

The issue was with this line:

 context.Response.AddHeader("Content-Disposition", string.Format("attachment; filename={0};", fileName));

I found the solution at the following documentation which suggests to use quotes around the file names. I did the same and changed the above piece of code to :

context.Response.AddHeader("Content-Disposition", string.Format("attachment;filename=\"{0}\"", fileName));

And my issue was fixed after that.