diff --git a/pybis/src/python/pybis/pybis.py b/pybis/src/python/pybis/pybis.py
index dea7652d1d2f327d7896188c1fb415682b9c09f1..fd27e5f1746d6afa83c7d57af3610bb99b7ad165 100644
--- a/pybis/src/python/pybis/pybis.py
+++ b/pybis/src/python/pybis/pybis.py
@@ -3395,7 +3395,7 @@ class Openbis:
     def new_sample_type(self,
         code, 
         generatedCodePrefix,
-        subcodeUnique=False
+        subcodeUnique=False,
         autoGeneratedCode=False,
         listable=True,
         showContainer=False,