diff --git a/master-bot/tiss.py b/master-bot/tiss.py
index 3f7e620..70fee03 100644
--- a/master-bot/tiss.py
+++ b/master-bot/tiss.py
@@ -66,7 +66,7 @@ class TISS:
 
         
         table = soup.select('th[aria-label="Studienkennzahl"]')[0].parent.parent.parent
-        curricula = [re.sub("\D", "", tr.find("td").text) for tr in table.find("tbody").find_all("tr")]
+        curricula = [re.sub(r'\D', "", tr.find("td").text) for tr in table.find("tbody").find_all("tr")]
 
         lva = LVA(code, course_name, ects, curricula, type)