Especially for a privacy analysis, an adequate and accurate consideration of domain knowledge is needed. Domain knowledge is often only implicitly given and mainly stored in the minds of domain experts. It is important to make this implicit knowledge explicit and to use it in the privacy analysis of a software system. To our knowledge, no privacy-aware requirements engineering approach exists yet which explicitly considers the elicitation of privacy-relevant domain knowledge. This paper presents an extension of the problem-based privacy analysis (ProPAn) method. The extension consists of three parts. First, we elicit the relevant domain knowledge based on questionnaires which are derived from the stakeholder analysis literature. Second, we present generic patterns which can be instantiated to represent the elicited knowledge. Last, we extend the definitions of ProPAn’s privacy graphs to take into account the domain knowledge.