St Johnstone manager Steve Lomas insists last week's victory against Celtic will count for nothing if his team lose to Ross County on Saturday.
Saints stunned the Scottish champions when they fought back from behind to claim a 2-1 Clydesdale Bank Premier League win in front of their jubilant fans at McDiarmid Park.
Lomas has now told his players they must build on their first victory of the season when they make the long trip north to Dingwall to face a side who are notoriously tough to break down.
The Saints boss knows the task facing them will not be an easy one but his players head into the match in positive mood.
He said: "I think any win makes training a lot more enjoyable.
"To come back after such an early setback was very positive.
"But, listen, it will count for nothing if we don't go up and produce the same sort of performance and hopefully get a result against Ross County, who are bang in form."
Celtic took the lead after just four minutes through Kris Commons last weekend before St Johnstone hit back with goals from Gregory Tade and Rowan Vine.
Lomas believes clinical finishing in front of goal made all the difference after passing up chances in previous outings.
He said: "We have been putting in good performances but we took our chances on Saturday, which made a big difference.
"It's not going to be easy. What a great run Ross County have been on - it's been an absolute credit to themselves and the club."
St Johnstone are aiming to end an unbeaten league run of 40 games, which County have carried on from the Irn-Bru First Division into the SPL.
Lomas told STV: "We would like to but we know it's going to be tough.
"If you get anything up there, they certainly make you work for it so we are under no illusions.
"It's going to be tough and we are going to have to perform at our best to get something from the game.
"The lads are under no illusions, they are going to have to perform well.
"But, that being said, if we perform like we did against Celtic and like we did in the other away games, the key thing is to take our chances."