diff --git a/resources/org.kiwix.desktop.appdata.xml b/resources/org.kiwix.desktop.appdata.xml
index 3ea5c7e..6723f5d 100644
--- a/resources/org.kiwix.desktop.appdata.xml
+++ b/resources/org.kiwix.desktop.appdata.xml
@@ -15,6 +15,7 @@
   <releases>
     <release version="2.0-beta3" date="2019-01-29" />
   </releases>
+  <content_rating type="oars-1.0" />
   <launchable type="desktop-id">org.kiwix.desktop.desktop</launchable>
   <metadata_license>CC0-1.0</metadata_license>
   <project_license>GPL-3.0+</project_license>