diff --git a/convert2rss.py b/convert2rss.py
index 533935d..b5e0790 100755
--- a/convert2rss.py
+++ b/convert2rss.py
@@ -87,6 +87,7 @@ def is_the_subject_math(res):
         if is_in_german(res)
         and has_description(res)
         and not is_a_video_resource(res)
+        and not "Course" in res["type"]
         and not is_a_quiz_resource(res)
         and is_the_subject_math(res)
         and get_license_name(res["license"]["id"]) is not None