Home page title contains HTML img tag

The home page currently has a title of <img src="/content/img/logo-top.png" alt="codeAbility" width="168px"/>Joint Ressourcing of Teaching Material. This value is set in src/main/webapp/i18n/{de,en}/home.json. My browser displays this as the raw text, meaning that the tab's title is the beginning of the image tag instead of an image or a normal title. (The favicon is still displayed).