Excel VBA, getting range from an inactive sheet

This script works fine when I'm viewing the "Temp" sheet. But when I'm in another sheet then the copy command fails.. It gives a "Application-defined or object-defined error"

Sheets("Temp").Range(Cells(1), Cells(1).End(xlDown)).Copy
Sheets("Overview").Range("C40").PasteSpecial

I can use this script instead, but then I have problems with pasting it

Sheets("Temp").Columns(1).Copy
Sheets("Overview").Range("C40").PasteSpecial

• I dont want to activate the "Temp" sheet to get this

What else can I do