diff --git a/stw_potsdam/xml_types/meal_xml.py b/stw_potsdam/xml_types/meal_xml.py
index d9629a2..8e2218b 100644
--- a/stw_potsdam/xml_types/meal_xml.py
+++ b/stw_potsdam/xml_types/meal_xml.py
@@ -40,6 +40,8 @@ class MealXML:
                 continue
             price = doc.createElement("price")
             price.setAttribute("role", key)
+            if val is None:
+                val = 0.0
             txt_node = doc.createTextNode(f"{val:.2f}")
             price.appendChild(txt_node)
             meal.appendChild(price)
diff --git a/stw_potsdam/xml_types/times_xml.py b/stw_potsdam/xml_types/times_xml.py
index a458d13..3aaaa3d 100644
--- a/stw_potsdam/xml_types/times_xml.py
+++ b/stw_potsdam/xml_types/times_xml.py
@@ -15,8 +15,9 @@ class CanteenOpenTimespec(str):
         "",
     }
 
-    PATTERN = (r'.*(?P<hour1>\d{1,2}):(?P<min1>\d{1,2})\s*'
-               r'-\s*(?P<hour2>\d{1,2}):(?P<min2>\d{1,2}).*')
+    PATTERN = (r'.*(?P<hour1>\d{1,2}):(?P<min1>\d{1,2})'
+               r'\D*(?P<hour2>\d{1,2}):(?P<min2>\d{1,2}).*')
+
     MATCHER = re.compile(PATTERN)
 
     def __new__(cls, spec):