In this episode, Marta and Willem, along with their guest Prof. Ole Hansen discuss the modification of construction contracts. They explore why in practice, there is often a need for modification in construction contracts and how it is addressed with reference to principles of loyalty and reciprocity. They point out that the rules concerning modification of public contracts do not always represent the commercial reality but merely focus on what is promised in the tender. For the dessert, they argue contract law perspective in public contracts is welcomed.