diff --git a/python/dune/perftool/cgen/clazz.py b/python/dune/perftool/cgen/clazz.py
index 79e3b57f746bc51a05924fa7bb5114784a0c2c19..7f74353f8a8ad09960e4aaa5340c83c8fe0357b6 100644
--- a/python/dune/perftool/cgen/clazz.py
+++ b/python/dune/perftool/cgen/clazz.py
@@ -34,7 +34,7 @@ class BaseClass(Generable):
 
 
 class ClassMember(Generable):
-    def __init__(self, member, access=AccessModifier.PUBLIC, name=None):
+    def __init__(self, member, access=AccessModifier.PUBLIC, name=""):
         self.member = member
         self.access = access
         self.name = name