diff --git a/Documentation.md b/Documentation.md
index fd785ce..dabc04f 100644
--- a/Documentation.md
+++ b/Documentation.md
@@ -29,6 +29,7 @@ If you want to use the omdb API you'll need to add a `apiKeys.json` in /resource
 * Apache Log4j 2: https://logging.apache.org/log4j/2.x/
 * vlcj: https://github.com/caprica/vlcj
 * OMDb API: https://www.omdbapi.com/
+* material icons: https://material.io/resources/icons/
 
 ## Naming-schema since HomeFlix 0.7
 New HomeFlix (major) release series are named after a special naming schema. The name must be connected to a movie or a series (it shouldn't be to obvious). The name should have to parts, at first a verb like "toothless" and as second part a noun like "dragon". If there is more than one suggestion, we will vote which one we will taken. A new name is always used with a new version, but a new version doesn't always get a new code name.