Here is another valuable Management Tip of the Day from Harvard Business Review. To sign up for a free subscription to any/all HBR newsletters, please click here.

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It can be incredibly frustrating when a co-worker agrees with a plan of action, only to go off and do his own thing. This type of sabotage is all too common and can make it difficult to achieve your goals. When you have a co-worker who says one thing and does another, try this:

Give feedback. Explain to your co-worker what you’re seeing and experiencing. Describe the impact of his behavior on you and provide suggestions for how he might change.

Focus on work, not the person. You need to get the work done despite your peer’s style, so don’t waste time wishing he would change. Concentrate on completing the work instead.

Ask for commitment. At the end of a meeting ask everyone (not just the troublemaker) to reiterate what they are going to do and by when.

Sometimes peer pressure can keep even the most passive-aggressive person on task.

Today’s Management Tip was adapted from “How to Deal With a Passive-Aggressive Peer” by Amy Jen Su and Muriel Maignan Wilkins.

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