Could not execute stored procedure ‘master.dbo.sp_enable_sql_debug’

This morning I found this error when trying to debug a stored procedure from Visual Studio 2005:

User ‘dbo’ could not execute stored procedure ‘master.dbo.sp_enable_sql_debug’

After googling a bit, I found that to solve this problem, the user accessing the DB must be part of the sysadmin server roles. To add a user to this role: (click more for the steps)

• Right Click On user under Security in the database
• Select Properties
• Select Server Roles
• Check the sysadmin role

This must be done from the Main security tab (Server Security), not from the Security tab under a particular database.